https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/Head
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://www.nanopub.org/nschema#hasAssertion
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/assertion
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://www.nanopub.org/nschema#hasProvenance
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/provenance
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://www.nanopub.org/nschema#hasPublicationInfo
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/pubinfo
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.nanopub.org/nschema#Nanopublication
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/assertion
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://purl.org/dc/terms/description
Fetched the FishBase species summary, followed the FishReproSummary link, and searched only the slice from the Mode field through the life-cycle paragraph. Separate-sex wording and egg, spawning, fecundity, or larva wording were matched with the pre-registered expressions. OBIS was queried with facets=lifeStage and size implied by the facet endpoint; buckets whose labels match egg, larva, or leptocephalus were summed. The HTML navigation label 'Eggs' is outside that slice.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/Assessment
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://www.w3.org/2000/01/rdf-schema#comment
Measured: 1 1 if the reproduction mode matches separate sexes, else 0 (n = 1). Interpretation: Aristotle's eel is the European eel, Anguilla anguilla. 'Neither male nor female' is separate sexes in the reproduction record. 'Engenders nothing' and 'no eel has ever been seen with an egg' are eggs, spawning, fecundity, or a leptocephalus larva. Other Anguilla species are out of scope for the verdict.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-ha04-28 (pr-101): refutes, confidence 0.84
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://www.w3.org/2000/01/rdf-schema#seeAlso
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-ha04-28/pr-101/result.json
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
http://www.w3.org/ns/prov#wasAttributedTo
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/admissibleDatasets
A public species account of Anguilla anguilla, the European eel of the Mediterranean and eastern Atlantic, plus a public occurrence store that separates life stages. River-caught yellow eels without a life stage do not count as offspring.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/assessmentType
claim-test/0.1.0
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/dataKind
biological
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/disconfirmingObservation
The same record codes separate sexes, or it or OBIS records eggs, spawning, or larvae. Either one is enough, because the claim says the eel is neither sex and engenders nothing.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/evidenceAgainst
A web-search snippet of a FishBase species page mentioned spawning and testicles of the European eel before this registration. The reproduction table itself was not downloaded, and the expressions above were fixed from the claim rather than from that snippet. The verdict is the scripted match on the retrieved page.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/evidenceAgainst
Silver eels mature at sea. A river account that omits eggs would not by itself support the claim once a larval record exists.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/evidenceAgainst
The FishBase summary URL for a different Lophius page returned HTTP 200 in this session. The Anguilla summary URL was not opened.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/evidenceAgainst
The retrieved account also says that actual spawning has never been observed. That sentence does not remove the mode or the egg-scatterer guild from the same record.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/expectedObservation
The European eel's public reproduction record does not assign it separate sexes and does not record eggs, spawning, or a larval stage, and OBIS has no egg or leptocephalus records.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/failCriterion
Pre-registered (claim refuted). The claim is a universal negative, so one recorded counterexample refutes it. It is refuted if the reproduction mode matches dioecism, dioecious, gonochorism, gonochoristic, or separate sexes, or if the reproduction text matches egg, eggs, spawning, fecundity, leptocephalus, larva, or larvae, or if an OBIS life-stage bucket labelled egg, larva, or leptocephalus has a count of at least 1. If the summary page cannot be retrieved and OBIS returns no life-stage facet, the verdict is inconclusive with reason data-unavailable. If the page is retrieved but contains no reproduction mode and OBIS has no life-stage facet, the verdict is inconclusive with reason other.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/hasConfidence
0.84
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/hasEvidence
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/hasEvidence
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/hasVerdict
refutes
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/hypothesis
If the eel is neither male nor female and produces no offspring, the FishBase reproduction record for the European eel Anguilla anguilla does not describe separate sexes, and neither that record nor OBIS life-stage counts record eggs or larvae.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/inferenceMethod
The reproduction block linked from the FishBase species summary is matched with the pre-registered expressions. OBIS is queried for Anguilla anguilla with a life-stage facet and size 0 so that only counts are stored. Any positive egg, larva, or leptocephalus count, or a dioecious mode, refutes the claim.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/passCriterion
Pre-registered (claim supported). The FishBase reproduction record for Anguilla anguilla was retrieved and its mode states that the sexes are not separate (wording such as no distinguishable sex, no gonads, or sexless), the reproduction text does not match egg, eggs, spawning, fecundity, leptocephalus, or larva/larvae, and the OBIS life-stage facet for Anguilla anguilla, if retrieved, has a zero count for every bucket whose label matches egg, larva, or leptocephalus.
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/ontology/preregistered
false
https://w3id.org/delphi/resource/claim/aristotle-ha04-28
https://w3id.org/delphi/ontology/hasAssessment
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://purl.org/dc/terms/description
reproduction mode and life-cycle text of the European eel
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://purl.org/dc/terms/license
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/EvidenceItem
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://www.w3.org/2000/01/rdf-schema#label
Dataset: FishBase species summary for Anguilla anguilla
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://www.w3.org/ns/prov#atLocation
https://www.fishbase.se/Reproduction/FishReproSummary.php?ID=35&GenusName=Anguilla&SpeciesName=anguilla&fc=49&StockCode=45
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://www.w3.org/ns/prov#atLocation
https://www.fishbase.se/summary/Anguilla-anguilla.html
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
http://www.w3.org/ns/prov#wasDerivedFrom
https://www.fishbase.se/summary/Anguilla-anguilla.html
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:7d738a828759cdcd9dddf537f60e39dd91c4c19d0f5601f63eb1611edb10f379
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:a21e700301cab21b84f134aa4cd767c504c21fb3dbc230266595597f463526fb
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://purl.org/dc/terms/description
counts of egg and larval occurrence records, without downloading occurrences
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://purl.org/dc/terms/license
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/EvidenceItem
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://www.w3.org/2000/01/rdf-schema#label
Dataset: OBIS occurrence life-stage facet for Anguilla anguilla
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://www.w3.org/ns/prov#atLocation
https://api.obis.org/v3/facet?scientificname=Anguilla%20anguilla&facets=lifeStage
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
http://www.w3.org/ns/prov#wasDerivedFrom
https://obis.org/
https://w3id.org/delphi/resource/evidence/aristotle-ha04-28--claim-test--pr-101--dataset-2
https://w3id.org/delphi/ontology/hasChecksum
sha256:ee7e3177676f8804a8d394cdf67fbf03ae75c46184499a40e303877973c9b07a
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/provenance
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#SoftwareAgent
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/2000/01/rdf-schema#label
delphisci claim tester (grok-4.7; cursor/aristotle-biology-claim-tests-df92)
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/ns/prov#actedOnBehalfOf
https://orcid.org/0009-0007-4948-9192
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/delphi/ontology/usesModel
https://w3id.org/delphi/resource/model/grok-4-7
https://w3id.org/delphi/resource/model/grok-4-7
http://purl.org/dc/terms/identifier
grok-4.7
https://w3id.org/delphi/resource/model/grok-4-7
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/LanguageModel
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/assertion
http://www.w3.org/ns/prov#wasAttributedTo
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/assertion
http://www.w3.org/ns/prov#wasDerivedFrom
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-ha04-28/pr-101/result.json
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/assertion
http://www.w3.org/ns/prov#wasGeneratedBy
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/test
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/plan
http://www.w3.org/ns/prov#hadPlan
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/README.md
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/test
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#Activity
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/test
http://www.w3.org/ns/prov#qualifiedAssociation
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/plan
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/test
http://www.w3.org/ns/prov#wasAssociatedWith
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/pubinfo
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://purl.org/dc/terms/created
2026-11-08T16:24:31.759Z
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://purl.org/dc/terms/creator
https://orcid.org/0009-0007-4948-9192
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://purl.org/dc/terms/license
https://creativecommons.org/licenses/by/4.0/
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://purl.org/nanopub/x/hasNanopubType
https://w3id.org/delphi/ontology/Assessment
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://purl.org/nanopub/x/introduces
https://w3id.org/delphi/resource/assessment/aristotle-ha04-28--claim-test--pr-101
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-ha04-28 (pr-101): refutes, confidence 0.84
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
https://w3id.org/delphi/ontology/domain
https://w3id.org/delphi/resource/domain/aristotle-biology
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/sig
http://purl.org/nanopub/x/hasAlgorithm
RSA
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/sig
http://purl.org/nanopub/x/hasPublicKey
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/sig
http://purl.org/nanopub/x/hasSignature
On3U6AE6cHiJoiaDbhWmD2rnWlHDvuUpil/1RJlKivjTFNhcMPVY+Ke4WFdldvxBl2wnz6ynVT/M3nBimpTOp/BknOorxyvpI464jAzJMoEGVz/FG0Ae/QkmH/QoQ/hwJajmBM7aIYkEfHISTvOvtgdnrvjX0v8KzmdQ3Sq1ly+BqPapo6b9hZmsL4lFThk/iFUYNXuvb63q7zeIvIEKFo12U0a35OZE4aB2ra7YiQFlN/KC346EUHodUe2TVIrsPFQlnCr3pRwmf+J/q2ZRFucdJ192go2iR8mREajmWis5KDp9NhEjqAaHvqSHaAt4SAYylT2U8+vyNXPdvegnBA==
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/sig
http://purl.org/nanopub/x/hasSignatureTarget
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k
https://w3id.org/np/RAdNc5_IFrG72tB7PHNz0paMmdO5LHn78xZda7JqUPF6k/sig
http://purl.org/nanopub/x/signedBy
https://orcid.org/0009-0007-4948-9192