Valens Aqueduct
E177601
The Valens Aqueduct is a late Roman-era aqueduct in Istanbul, Turkey, that once formed a key part of the city’s water supply system and remains a prominent historic landmark.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Valens Aqueduct canonical | 4 |
| Aqueduct of Valens | 1 |
| Bozdoğan Aqueduct | 1 |
| Hadrian’s Aqueduct | 1 |
| Valens Aqueduct restorations | 1 |
| Valens Aqueduct system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1563258 — 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: Valens Aqueduct Context triple: [Basilica Cistern, waterSource, Valens Aqueduct]
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A.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
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B.
Aqua Virgo aqueduct
The Aqua Virgo aqueduct is an ancient Roman waterway, completed in 19 BCE under Augustus, that has long supplied water to central Rome, including the Trevi Fountain.
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C.
New Croton Aqueduct
The New Croton Aqueduct is a major underground water tunnel that conveys drinking water from the Croton Reservoir system in upstate New York to New York City.
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D.
Echo Bridge aqueduct
Echo Bridge aqueduct is a historic 19th-century masonry bridge and former water-carrying structure in Massachusetts, notable for its impressive stone arches and scenic views over the Charles River.
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E.
Cloaca Maxima
The Cloaca Maxima was one of ancient Rome’s earliest and largest sewage systems, an engineering marvel that helped drain the city’s low-lying areas and manage wastewater.
- 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: Valens Aqueduct Target entity description: The Valens Aqueduct is a late Roman-era aqueduct in Istanbul, Turkey, that once formed a key part of the city’s water supply system and remains a prominent historic landmark.
-
A.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
-
B.
Aqua Virgo aqueduct
The Aqua Virgo aqueduct is an ancient Roman waterway, completed in 19 BCE under Augustus, that has long supplied water to central Rome, including the Trevi Fountain.
-
C.
New Croton Aqueduct
The New Croton Aqueduct is a major underground water tunnel that conveys drinking water from the Croton Reservoir system in upstate New York to New York City.
-
D.
Echo Bridge aqueduct
Echo Bridge aqueduct is a historic 19th-century masonry bridge and former water-carrying structure in Massachusetts, notable for its impressive stone arches and scenic views over the Charles River.
-
E.
Cloaca Maxima
The Cloaca Maxima was one of ancient Rome’s earliest and largest sewage systems, an engineering marvel that helped drain the city’s low-lying areas and manage wastewater.
- F. None of above. chosen
Statements (50)
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: Valens Aqueduct Description of subject: The Valens Aqueduct is a late Roman-era aqueduct in Istanbul, Turkey, that once formed a key part of the city’s water supply system and remains a prominent historic landmark.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hadrian’s Aqueduct
this entity surface form:
Aqueduct of Valens
this entity surface form:
Valens Aqueduct system
this entity surface form:
Bozdoğan Aqueduct
this entity surface form:
Valens Aqueduct restorations