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That fraction is 10 of 11. The matched-object sentence names rocks: True. The methods section mentions hunting or prey: False; alarm or disturbance: False; camouflage: True. Support required a majority match, rocks or stones, and both a hunting context and an alarm context. A majority match that does not meet both contexts is the partial outcome named in the fail criterion." } ], "@type": [ "https://w3id.org/delphi/ontology/Assessment" ], "http://www.w3.org/2000/01/rdf-schema#comment": [ { "@value": "Measured: 0.9091 fraction of imaged octopuses reported to match a nearby object (n = 11, 10 of 11; one case noted as not clear in the same sentence). Interpretation: Aristotle's octopus is read as octopuses generally, with Octopus vulgaris in scope and Octopus cyanea admissible in the same test because the claim names the kind rather than a single modern species. 'Colour of the stones adjacent' is read as a body pattern resembling a nearby discrete hard object (rock or stone), not the average of the whole visual field. 'When alarmed' is an alarm, threat, or disturbance context. 'Seeks its prey by so changing its colour' is a prey-approach or hunting context. Concealment photographed without a stated trigger is neither hunting nor alarm. 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One open-access field study is enough for a typicality claim; it is not a sample of all octopus species." } ], "https://w3id.org/delphi/ontology/assessmentType": [ { "@value": "claim-test/0.1.0" } ], "https://w3id.org/delphi/ontology/dataKind": [ { "@value": "biological" } ], "https://w3id.org/delphi/ontology/disconfirmingObservation": [ { "@value": "Half or fewer of the octopuses match a nearby object, or the animals match the wide field rather than adjacent objects." } ], "https://w3id.org/delphi/ontology/evidenceAgainst": [ { "@value": "A web-search snippet showed this count before preregistration. The threshold stayed a majority." }, { "@value": "Eleven images from one reef (Eilat) are not a sample of all octopuses." }, { "@value": "Matching a nearby rock, coral, sand patch, or alga is a broader reading than matching only stones." }, { "@value": "Octopus cyanea and O. vulgaris are both named; the 10-of-11 count is not split by species." }, { "@value": "The animals were photographed already camouflaged. The methods do not record a prey approach or an alarm stimulus, so the two occasions Aristotle names are not separated." } ], "https://w3id.org/delphi/ontology/expectedObservation": [ { "@value": "More than half of the octopuses in the study match a nearby object that includes rock or stone, and the study records that behaviour both while approaching prey and when alarmed." } ], "https://w3id.org/delphi/ontology/failCriterion": [ { "@value": "The same fraction is 0.5 or below: refutes (octopuses do not, as a rule, match adjacent objects). Fraction above 0.5 but only one of the two contexts (hunting, alarm/disturbance) is actually measured, or rocks/stones are not among the matched objects: mixed. If the fraction cannot be parsed from the full text: inconclusive, reason data-unavailable." } ], "https://w3id.org/delphi/ontology/hasConfidence": [ { "@value": "0.64", "@type": "http://www.w3.org/2001/XMLSchema#double" } ], "https://w3id.org/delphi/ontology/hasEvidence": [ { "@id": "https://w3id.org/delphi/resource/evidence/aristotle-ha09-22--claim-test--dataset-1" } ], "https://w3id.org/delphi/ontology/hasVerdict": [ { "@value": "mixed" } ], "https://w3id.org/delphi/ontology/hypothesis": [ { "@value": "If the octopus hunts by matching the colour of adjacent stones and does the same when alarmed, then in a field image study of octopuses most individuals' body patterns resemble a nearby discrete object, including rock or stone, and that match is recorded in both a prey-approach context and an alarm context." } ], "https://w3id.org/delphi/ontology/inferenceMethod": [ { "@value": "Parse the full-text XML for the fraction of individuals reported to match a nearby object, and code the study context from the methods as hunting, alarm, or mere concealment. 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