Cephalus
E190151
Cephalus is an elderly, wealthy Athenian arms manufacturer who appears in Plato’s Republic as the initial interlocutor in Socrates’ discussion of justice.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cephalus canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T1685598 — 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: Cephalus Context triple: [Republic, featuresCharacter, Cephalus]
-
A.
Demea
Demea is a character in David Hume’s *Dialogues Concerning Natural Religion* who represents a traditional, fideistic religious perspective emphasizing human ignorance and the limits of reason in theology.
-
B.
Aristaeus
Aristaeus is a minor Greek god associated with agriculture, beekeeping, and pastoral pursuits, often revered as a culture hero who taught humans various rural arts.
-
C.
Eryximachus
Eryximachus is a physician and one of the speakers in Plato’s *Symposium*, known for giving a speech on love from a medical and cosmic perspective.
-
D.
Demophon
Demophon is a figure in Greek mythology, traditionally known as one of the sons of the Athenian hero Theseus and later a king of Athens.
-
E.
Menoetius
Menoetius is a Titan in Greek mythology, known as a son of Iapetus and Clymene and the father of the hero Patroclus.
- 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: Cephalus Target entity description: Cephalus is an elderly, wealthy Athenian arms manufacturer who appears in Plato’s Republic as the initial interlocutor in Socrates’ discussion of justice.
-
A.
Demea
Demea is a character in David Hume’s *Dialogues Concerning Natural Religion* who represents a traditional, fideistic religious perspective emphasizing human ignorance and the limits of reason in theology.
-
B.
Aristaeus
Aristaeus is a minor Greek god associated with agriculture, beekeeping, and pastoral pursuits, often revered as a culture hero who taught humans various rural arts.
-
C.
Eryximachus
Eryximachus is a physician and one of the speakers in Plato’s *Symposium*, known for giving a speech on love from a medical and cosmic perspective.
-
D.
Demophon
Demophon is a figure in Greek mythology, traditionally known as one of the sons of the Athenian hero Theseus and later a king of Athens.
-
E.
Menoetius
Menoetius is a Titan in Greek mythology, known as a son of Iapetus and Clymene and the father of the hero Patroclus.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
Platonic dialogue character
ⓘ
fictional character ⓘ literary character ⓘ |
| ageDescriptor | elderly ⓘ |
| appearsIn | Republic ⓘ |
| citizenshipStatus | resident alien in Athens ⓘ |
| concern | fear of punishment in the afterlife ⓘ |
| createdBy | Plato ⓘ |
| culturalContext | Classical Athens ⓘ |
| dialogueAction | withdraws from the conversation to attend to sacrifices ⓘ |
| dialogueContext | discussion of justice in Plato’s Republic ⓘ |
| dialoguePartner | Socrates ⓘ |
| ethnicOrigin | metoikos in Athens ⓘ |
| familyRelation |
father of Euthydemus
ⓘ
father of Lysias ⓘ father of Polemarchus ⓘ |
| historicity | based on a historically existing metic arms manufacturer in Athens ⓘ |
| knownFor |
opening discussion of justice with Socrates
ⓘ
view that justice is telling the truth and paying one’s debts ⓘ |
| languageOfWork | Ancient Greek ⓘ |
| literaryFunction | sets up the problem of defining justice ⓘ |
| nameInOriginalLanguage | Κέφαλος ⓘ |
| occupation |
arms manufacturer
ⓘ
shield-maker ⓘ |
| philosophicalPosition | conventional view of justice ⓘ |
| philosophicalTheme |
attitude toward old age
ⓘ
relation between wealth and justice ⓘ |
| religiousPractice | offers sacrifices to the gods ⓘ |
| residence | Piraeus ⓘ |
| roleInWork | initial interlocutor of Socrates in the Republic ⓘ |
| socialStatus | wealthy Athenian ⓘ |
| sourceTextLocation |
Plato's Republic
ⓘ
surface form:
Plato, Republic, Book I
|
| spouse | mother of Polemarchus ⓘ |
| virtueEmphasized |
justice
ⓘ
truthfulness ⓘ |
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: Cephalus Description of subject: Cephalus is an elderly, wealthy Athenian arms manufacturer who appears in Plato’s Republic as the initial interlocutor in Socrates’ discussion of justice.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.