Les Ferreres Aqueduct
E1034409
Les Ferreres Aqueduct is an ancient Roman bridge-aqueduct near Tarragona, Spain, renowned for its well-preserved arches and role in supplying water to the former Roman city of Tarraco.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Les Ferreres Aqueduct canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T13325679 — 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: Les Ferreres Aqueduct Context triple: [Archaeological Ensemble of Tarraco, hasPart, Les Ferreres Aqueduct]
-
A.
Espada Aqueduct
Espada Aqueduct is a historic 18th-century stone irrigation structure in San Antonio, Texas, built by Spanish missionaries to supply water to Mission Espada and its surrounding farmlands.
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B.
Amoreira Aqueduct
The Amoreira Aqueduct is a historic 16th–17th century aqueduct in Elvas, Portugal, renowned for its monumental multi-tiered arches that once supplied water to the fortified city and now form part of its UNESCO World Heritage landscape.
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C.
Cantalloc Aqueducts
Cantalloc Aqueducts are a series of ancient underground and spiral stone water channels built by the Nazca culture in Peru to ensure a reliable water supply in an arid desert environment.
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D.
Segovia Aqueduct
The Segovia Aqueduct is an ancient Roman stone aqueduct in the Spanish city of Segovia, renowned for its remarkably well-preserved arches and engineering.
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E.
Valens Aqueduct
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.
- 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: Les Ferreres Aqueduct Target entity description: Les Ferreres Aqueduct is an ancient Roman bridge-aqueduct near Tarragona, Spain, renowned for its well-preserved arches and role in supplying water to the former Roman city of Tarraco.
-
A.
Espada Aqueduct
Espada Aqueduct is a historic 18th-century stone irrigation structure in San Antonio, Texas, built by Spanish missionaries to supply water to Mission Espada and its surrounding farmlands.
-
B.
Amoreira Aqueduct
The Amoreira Aqueduct is a historic 16th–17th century aqueduct in Elvas, Portugal, renowned for its monumental multi-tiered arches that once supplied water to the fortified city and now form part of its UNESCO World Heritage landscape.
-
C.
Cantalloc Aqueducts
Cantalloc Aqueducts are a series of ancient underground and spiral stone water channels built by the Nazca culture in Peru to ensure a reliable water supply in an arid desert environment.
-
D.
Segovia Aqueduct
The Segovia Aqueduct is an ancient Roman stone aqueduct in the Spanish city of Segovia, renowned for its remarkably well-preserved arches and engineering.
-
E.
Valens Aqueduct
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Roman aqueduct
ⓘ
ancient monument ⓘ arch bridge ⓘ |
| alsoKnownAs |
Devil’s Bridge
NERFINISHED
ⓘ
Pont del Diable NERFINISHED ⓘ |
| architecturalStyle | Roman engineering ⓘ |
| builtBy | Ancient Romans NERFINISHED ⓘ |
| connects |
ancient Roman city of Tarraco
ⓘ
water sources of Francolí River area ⓘ |
| conservationStatus | well preserved ⓘ |
| country | Spain ⓘ |
| crosses | Francolí River valley NERFINISHED ⓘ |
| currentUse |
historical monument
ⓘ
tourist site ⓘ |
| era | Roman Empire NERFINISHED ⓘ |
| hasAccess | pedestrian access ⓘ |
| hasFunctionInPast | supplied water to Tarraco ⓘ |
| hasPart |
lower tier of arches
ⓘ
upper tier of arches ⓘ water channel ⓘ |
| hasStructureType | two-tier arcade ⓘ |
| hasViewOver | Francolí valley NERFINISHED ⓘ |
| heritageDesignation |
Bien de Interés Cultural
ⓘ
Cultural Property of National Significance in Spain NERFINISHED ⓘ UNESCO World Heritage Site ⓘ |
| inception | 1st century AD ⓘ |
| length | about 217 meters ⓘ |
| locatedIn |
Autonomous community of Catalonia
NERFINISHED
ⓘ
Catalonia ⓘ Province of Tarragona NERFINISHED ⓘ Roman city of Tarraco ⓘ Tarragona NERFINISHED ⓘ |
| locatedInProtectedArea | Les Ferreres Aqueduct Park NERFINISHED ⓘ |
| materialUsed | stone ⓘ |
| maximumHeight | about 27 meters ⓘ |
| municipality | Tarragona NERFINISHED ⓘ |
| near |
AP-7 motorway
NERFINISHED
ⓘ
N-240 road NERFINISHED ⓘ |
| numberOfArches |
11 (upper tier)
ⓘ
25 (lower tier) ⓘ |
| partOf | Archaeological Ensemble of Tarraco NERFINISHED ⓘ |
| region | Camp de Tarragona NERFINISHED ⓘ |
| touristAttraction | yes ⓘ |
| UNESCOInscriptionYear | 2000 ⓘ |
| UNESCOWorldHeritageId | 875 ⓘ |
| usedFor |
aqueduct
ⓘ
water supply ⓘ |
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: Les Ferreres Aqueduct Description of subject: Les Ferreres Aqueduct is an ancient Roman bridge-aqueduct near Tarragona, Spain, renowned for its well-preserved arches and role in supplying water to the former Roman city of Tarraco.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.