Hydra
E540386
Hydra is the largest and longest of the 88 modern constellations, representing a water serpent in the southern sky.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T5723808 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hydra Context triple: [IAU 88 modern constellations list, includes, Hydra]
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A.
Hydra
Hydra is a small, freshwater cnidarian polyp known for its simple tubular body and remarkable ability to regenerate lost or damaged tissues.
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B.
Hydra
Hydra is a many-headed serpent-like monster from Greek mythology, famous for its regenerative heads and its defeat by the hero Heracles.
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C.
Hydra
Hydra is a clandestine, authoritarian terrorist organization in the Marvel universe known for its infiltration of governments and S.H.I.E.L.D. and its recurring clashes with heroes like Captain America.
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D.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
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E.
Hydra
Hydra is one of Pluto’s small outer moons, discovered in 2005 and named after the many-headed serpent from Greek mythology.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Hydra Target entity description: Hydra is the largest and longest of the 88 modern constellations, representing a water serpent in the southern sky.
-
A.
Hydra
Hydra is a many-headed serpent-like monster from Greek mythology, famous for its regenerative heads and its defeat by the hero Heracles.
-
B.
Hydra
Hydra is one of Pluto’s small outer moons, discovered in 2005 and named after the many-headed serpent from Greek mythology.
-
C.
Hydra
Hydra is a small, freshwater cnidarian polyp known for its simple tubular body and remarkable ability to regenerate lost or damaged tissues.
-
D.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
-
E.
Hydra
Hydra is a clandestine, authoritarian terrorist organization in the Marvel universe known for its infiltration of governments and S.H.I.E.L.D. and its recurring clashes with heroes like Captain America.
- F. None of above. chosen
Statements (54)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Hydra Description of subject: Hydra is the largest and longest of the 88 modern constellations, representing a water serpent in the southern sky.
Referenced by (42)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Lupus constellation
subject linked to:
Lupus constellation
subject linked to:
Miaoulis
subject linked to:
constellation Hydra
subject linked to:
constellation Hydra
subject linked to:
Virgo constellation
linked to: Hydra
subject linked to:
Nix (moon)