LernaeanHydra
E113751
The Lernaean Hydra is a many-headed serpent-like monster from Greek mythology, famed for its regenerative heads and its defeat as one of Heracles’ Twelve Labors.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Lernaean Hydra | 10 |
| LernaeanHydra canonical | 2 |
| Ladon | 1 |
| LernaeanHydraOfLerna | 1 |
| Slaying of the Lernaean Hydra | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T924750 — 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: LernaeanHydra Context triple: [Typhoeus, offspring, LernaeanHydra]
-
A.
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.
-
B.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
-
C.
Cacus
Cacus is a fire-breathing giant and notorious cattle-stealing monster from Roman mythology, best known for being slain by the hero Hercules.
-
D.
Cerberus
Cerberus is the multi-headed hound from Greek mythology that guards the entrance to the underworld, preventing the dead from leaving.
-
E.
Medusa
Medusa is a famous painting by the Italian Baroque artist Caravaggio depicting the severed, snake-haired head of the Gorgon from Greek mythology at the moment of her death.
- 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: LernaeanHydra Target entity description: The Lernaean Hydra is a many-headed serpent-like monster from Greek mythology, famed for its regenerative heads and its defeat as one of Heracles’ Twelve Labors.
-
A.
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.
-
B.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
-
C.
Cacus
Cacus is a fire-breathing giant and notorious cattle-stealing monster from Roman mythology, best known for being slain by the hero Hercules.
-
D.
Cerberus
Cerberus is the multi-headed hound from Greek mythology that guards the entrance to the underworld, preventing the dead from leaving.
-
E.
Medusa
Medusa is a famous painting by the Italian Baroque artist Caravaggio depicting the severed, snake-haired head of the Gorgon from Greek mythology at the moment of her death.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
GreekMythologyFigure
ⓘ
monster ⓘ mythologicalCreature ⓘ serpent ⓘ |
| associatedWith |
Eurystheus
ⓘ
Heracles ⓘ |
| commissionedLaborBy | Eurystheus ⓘ |
| culture | AncientGreek ⓘ |
| defeatedByMethod |
burialOfImmortalHeadUnderRock
ⓘ
decapitationAndCauterization ⓘ |
| guarded | entranceToUnderworldNearLerna ⓘ |
| hasAbility |
headRegeneration
ⓘ
poisonEmission ⓘ |
| hasAlternativeName |
Hydra
ⓘ
LernaeanHydra ⓘ
surface form:
LernaeanHydraOfLerna
|
| hasWeakness |
cauterizationOfNecks
ⓘ
decapitationOfImmortalHead ⓘ |
| iconography |
manyHeadedSerpent
ⓘ
oneImmortalCentralHead ⓘ |
| influencedConcept | hydraMetaphorInModernLanguage ⓘ |
| killedBy |
Heracles
ⓘ
Iolaus ⓘ
surface form:
IolausAssistance
|
| laborNumber | SecondLaborOfHeracles ⓘ |
| locatedInMyth | Argolis ⓘ |
| mentionedInSource |
Apollodorus' Bibliotheca
ⓘ
surface form:
ApollodorusBibliotheca
Diodorus Siculus ⓘ
surface form:
DiodorusSiculusLibraryOfHistory
Hesiod's Theogony ⓘ
surface form:
HesiodTheogony
|
| notableFor |
immortalHead
ⓘ
multipleHeads ⓘ poisonousBreath ⓘ regeneratingHeads ⓘ venomousBlood ⓘ |
| parent |
Echidna
ⓘ
Typhoeus ⓘ
surface form:
Typhon
|
| partOf |
Heracles cycle
ⓘ
surface form:
TwelveLaborsOfHeracles
|
| residesIn | LakeLerna ⓘ |
| sibling |
Cerberus
ⓘ
Chimera ⓘ Gorgons ⓘ Ladon ⓘ Nemean Lion ⓘ
surface form:
NemeanLion
Orthrus ⓘ Scylla ⓘ Sphinx ⓘ |
| symbolizes |
multiplyingDifficulties
ⓘ
persistenceOfEvil ⓘ |
| weaponizedAs | poisonForArrows ⓘ |
| weaponizedBy | Heracles ⓘ |
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: LernaeanHydra Description of subject: The Lernaean Hydra is a many-headed serpent-like monster from Greek mythology, famed for its regenerative heads and its defeat as one of Heracles’ Twelve Labors.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lernaean Hydra
this entity surface form:
Lernaean Hydra
this entity surface form:
LernaeanHydraOfLerna
subject surface form:
Hydra (moon)
this entity surface form:
Lernaean Hydra
this entity surface form:
Lernaean Hydra
this entity surface form:
Lernaean Hydra
this entity surface form:
Lernaean Hydra