Selymbria
E314816
Selymbria was an ancient Greek colony on the Propontis (Sea of Marmara), known as a coastal city strategically located near the later site of Constantinople.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Selymbria canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2967090 — 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: Selymbria Context triple: [Megara, foundedColony, Selymbria]
-
A.
Panticapaeum
Panticapaeum was an important ancient Greek city and trading center on the Cimmerian Bosporus, located where the modern city of Kerch in Crimea now stands.
-
B.
Heraclea
Heraclea was an important ancient Greek city in southern Italy’s Lucania region, known for its strategic location and role in Magna Graecia.
-
C.
Lampsacus
Lampsacus was an ancient Greek city on the eastern shore of the Hellespont, known as a center of philosophy and culture in classical antiquity.
-
D.
Nikopolis
Nikopolis is an ancient city in Epirus, Greece, founded by the Roman emperor Augustus and known today for its extensive archaeological remains.
-
E.
Naissus
Naissus was an important ancient Roman city in the province of Moesia, located at the site of modern-day Niš in Serbia.
- 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: Selymbria Target entity description: Selymbria was an ancient Greek colony on the Propontis (Sea of Marmara), known as a coastal city strategically located near the later site of Constantinople.
-
A.
Panticapaeum
Panticapaeum was an important ancient Greek city and trading center on the Cimmerian Bosporus, located where the modern city of Kerch in Crimea now stands.
-
B.
Heraclea
Heraclea was an important ancient Greek city in southern Italy’s Lucania region, known for its strategic location and role in Magna Graecia.
-
C.
Lampsacus
Lampsacus was an ancient Greek city on the eastern shore of the Hellespont, known as a center of philosophy and culture in classical antiquity.
-
D.
Nikopolis
Nikopolis is an ancient city in Epirus, Greece, founded by the Roman emperor Augustus and known today for its extensive archaeological remains.
-
E.
Naissus
Naissus was an important ancient Roman city in the province of Moesia, located at the site of modern-day Niš in Serbia.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
Greek colony
ⓘ
ancient Greek city ⓘ ancient coastal city ⓘ |
| coast | northern shore of the Sea of Marmara ⓘ |
| continent | Europe ⓘ |
| country |
Greek Antiquity
ⓘ
surface form:
ancient Greece
|
| culture | Hellenic ⓘ |
| foundedAs | Greek colony ⓘ |
| hasAlternativeName |
Selybria
ⓘ
Selybria ⓘ
surface form:
Selybriae
Selybria ⓘ
surface form:
Selymvria
|
| hasHarbor | yes ⓘ |
| hasModernName | Silivri ⓘ |
| hasType | port city ⓘ |
| historicalPeriod |
Classical antiquity
ⓘ
Hellenistic period ⓘ Roman period ⓘ |
| knownFor |
proximity to the later site of Constantinople
ⓘ
strategic coastal position on the Sea of Marmara ⓘ |
| language | Ancient Greek ⓘ |
| laterUnderRuleOf |
Byzantine Empire
ⓘ
Ottoman Empire ⓘ Roman Empire ⓘ |
| locatedIn | Thrace ⓘ |
| locatedInPresentDay | Turkey ⓘ |
| locatedInRegion | European Turkey ⓘ |
| locatedNear |
Byzantium
ⓘ
Constantinople (probable) ⓘ
surface form:
Constantinople
|
| locatedOn |
Sea of Marmara
ⓘ
surface form:
Propontis
Sea of Marmara ⓘ |
| locatedOnRoute |
maritime approaches to Byzantium
ⓘ
sea route between the Aegean and the Black Sea ⓘ |
| locatedWestOf |
Constantinople (probable)
ⓘ
surface form:
Constantinople
Istanbul ⓘ |
| modernMunicipality | Silivri ⓘ |
| nearbyBodyOfWater |
Bosporus
ⓘ
surface form:
Bosporus (via Propontis)
|
| partOf |
Greek colonial network in the Propontis
ⓘ
Thrace ⓘ
surface form:
ancient Thrace
|
| strategicLocation | yes ⓘ |
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: Selymbria Description of subject: Selymbria was an ancient Greek colony on the Propontis (Sea of Marmara), known as a coastal city strategically located near the later site of Constantinople.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.