https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/Head https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8 http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/assertion https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8 http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/provenance https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8 http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/pubinfo https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/assertion https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test http://purl.org/dc/terms/description analysis.py downloads the Hamburger and Hamilton PDF and extracts the text layer with pdftotext. It counts beat or pulsat, heart, two-vessel phrases, somite, neural fold, optic vesicle and blood island, and splits the text on stage headings. A stage counts as the beating heart only when its own text has both heart and beat or pulsat. This text layer has heart and has none of the beat or vessel phrases, so those clauses are unscored and no earlier-organ comparison is made. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/Assessment https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test http://www.w3.org/2000/01/rdf-schema#comment Measured: 0 stages whose text says the heart beats (n = 6). Interpretation: Aristotle's hen's egg is the chick. 'A speck of blood that beats' is the first stage text that says the heart beats or pulsates. 'Two vein-ducts with blood lead from it' is a pair of vessels in that description. Somites, neural folds, optic vesicles and blood islands appearing in an earlier stage mean something else is described before the beating heart. The three-day timing in the passage is not scored, because stage series are numbered rather than locked to three days in the text that will be parsed. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test http://www.w3.org/2000/01/rdf-schema#label Claim test of aristotle-ha06-06: inconclusive, confidence 0.5 https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test http://www.w3.org/2000/01/rdf-schema#seeAlso https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-ha06-06/result.json https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test 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-ha06-06--claim-test https://w3id.org/delphi/ontology/admissibleDatasets A downloaded copy of the Hamburger and Hamilton 1951 chick stage series, or a second open copy of that same paper, with a checksum and a text layer the script parses. A wiki, a textbook page and an unreproduced stage table do not count. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/assessmentType claim-test/0.1.0 https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/dataKind biological https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/disconfirmingObservation An earlier stage mentions one of those structures, or the text says the heart does not beat or that no vessels leave it. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Somite, neural fold, optic vesicle and blood-island do occur in the text. They were not scored as earlier than the heartbeat because no heartbeat stage was found. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The extracted text names the heart six times, including fusion of the heart primordia and an S-shaped heart, and it never matches beat or pulsat. It also never matches two vessels, two veins, two arteries or vitelline. The beating and vessel clauses are unscored. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The text layer misreads some stage numbers, for example the thirteen-somite description is headed Stage 22. A dropped word is possible. No second copy was fetched because heart and somite were readable. The PDF states no license in the extracted text. n is the number of stage blocks that mention the heart. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/expectedObservation The lowest stage that says the heart beats also describes two vessels, and no earlier stage mentions somites, neural folds, optic vesicles or blood islands. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/failCriterion Pre-registered. The claim fails if any earlier stage matches somite, neural fold, optic vesicle, or blood island, or if the heart description says the heart does not beat, or if vessels leading from it are stated as absent. If the PDF has no usable text layer after one further open copy of the same paper is tried, the verdict is inconclusive with reason data-unavailable. A textbook or embryology-wiki table is not admissible. If the series describes a heart but never says it beats, the beating clause is unscored and the verdict is mixed if another clause was scored, otherwise inconclusive with reason not-operationalizable. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/hasConfidence 0.5 https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/hasEvidence https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/hasVerdict inconclusive https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/hypothesis If the claim holds, the earliest described beating heart in the hen's egg precedes other differentiated organs, and two vessels lead from that heart. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/inferenceMethod Stages are ordered by their numbers. The earliest heartbeat stage and any earlier organ mentions are read by the patterns above. Pass requires heartbeat, two vessels, and no earlier listed organ. An earlier listed organ fails the claim. No usable text is inconclusive, data-unavailable. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/passCriterion Pre-registered. The text is a downloaded stage series of the chick, Gallus gallus. The beating-heart stage is the lowest numbered stage whose text matches beat or pulsat and heart. Two vessels pass if that stage, or the paper's description of that heart, matches two vessels, two veins, two arteries, or vitelline vessels leading from it. The claim passes only if that stage exists, the vessel phrase is present, and no earlier stage matches somite, neural fold, optic vesicle, or blood island. https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/ontology/preregistered false https://w3id.org/delphi/resource/claim/aristotle-ha06-06 https://w3id.org/delphi/ontology/hasAssessment https://w3id.org/delphi/resource/assessment/aristotle-ha06-06--claim-test https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 http://purl.org/dc/terms/description stage descriptions of the chick. The PDF is over 1 MB and is not committed. https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 http://purl.org/dc/terms/license not stated in the extracted text https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--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-ha06-06--claim-test--dataset-1 http://www.w3.org/2000/01/rdf-schema#label Dataset: A series of normal stages in the development of the chick embryo https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 http://www.w3.org/ns/prov#atLocation https://homepage.univie.ac.at/brian.metscher/Hamburger51_ChickStages.pdf https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 http://www.w3.org/ns/prov#wasDerivedFrom https://homepage.univie.ac.at/brian.metscher/Hamburger51_ChickStages.pdf https://w3id.org/delphi/resource/evidence/aristotle-ha06-06--claim-test--dataset-1 https://w3id.org/delphi/ontology/hasChecksum sha256:5dba81ff820e25279b7da7bab0a89837d6addf89d915f91ed759e7d8d742fe60 https://w3id.org/np/RAX2Ra7ZsQ1-tQY-TP4n3PNKkw35WtLI6A_vuOIRuk1U8/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; 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