Elan Aqueduct
E845506
The Elan Aqueduct is a long-distance water supply system in Wales that transports drinking water from the Elan Valley to the city of Birmingham.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Elan Aqueduct canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10160290 — 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: Elan Aqueduct Context triple: [Elan Valley reservoirs, feedsViaAqueduct, Elan Aqueduct]
-
A.
Buc aqueduct
The Buc aqueduct is a historic 17th-century French aqueduct near Versailles, built under Louis XIV to supply water to the palace’s elaborate fountains and gardens.
-
B.
Chirk Aqueduct
Chirk Aqueduct is a historic early-19th-century navigable aqueduct in Wales, designed by Thomas Telford to carry the Llangollen Canal across the River Ceiriog near the town of Chirk.
-
C.
Lune Aqueduct
Lune Aqueduct is a historic 18th-century stone aqueduct in Lancaster, England, renowned for carrying the canal high over the River Lune with a series of impressive arches.
-
D.
Cacor aqueduct
The Cacor aqueduct is a historic French water bridge that carries the Canal de Garonne over the Tarn River near Moissac.
-
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: Elan Aqueduct Target entity description: The Elan Aqueduct is a long-distance water supply system in Wales that transports drinking water from the Elan Valley to the city of Birmingham.
-
A.
Buc aqueduct
The Buc aqueduct is a historic 17th-century French aqueduct near Versailles, built under Louis XIV to supply water to the palace’s elaborate fountains and gardens.
-
B.
Chirk Aqueduct
Chirk Aqueduct is a historic early-19th-century navigable aqueduct in Wales, designed by Thomas Telford to carry the Llangollen Canal across the River Ceiriog near the town of Chirk.
-
C.
Lune Aqueduct
Lune Aqueduct is a historic 18th-century stone aqueduct in Lancaster, England, renowned for carrying the canal high over the River Lune with a series of impressive arches.
-
D.
Cacor aqueduct
The Cacor aqueduct is a historic French water bridge that carries the Canal de Garonne over the Tarn River near Moissac.
-
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 (41)
| Predicate | Object |
|---|---|
| instanceOf | aqueduct ⓘ |
| architect | James Mansergh NERFINISHED ⓘ |
| constructionCost | approximately £6 million (early 20th century) ⓘ |
| constructionMaterial |
cast iron
ⓘ
concrete ⓘ masonry ⓘ |
| constructionStartDate | 1896 ⓘ |
| country | United Kingdom ⓘ |
| dailyCapacity |
about 300 million litres
ⓘ
about 66 million imperial gallons ⓘ |
| designedFor | gravity flow ⓘ |
| endPoint | Birmingham NERFINISHED ⓘ |
| engineer | James Mansergh NERFINISHED ⓘ |
| hasPart |
bridges
ⓘ
pipelines ⓘ siphons ⓘ tunnels ⓘ valves ⓘ |
| heritageStatus | part of Elan Valley historic waterworks ⓘ |
| inception | 1904 ⓘ |
| length |
118 km
ⓘ
73 mi ⓘ |
| locatedIn |
Birmingham water supply network
ⓘ
Elan Valley NERFINISHED ⓘ Wales ⓘ |
| maximumGradient | 1 in 2,300 ⓘ |
| openingDate | 1904 ⓘ |
| operator | Severn Trent Water NERFINISHED ⓘ |
| owner | Severn Trent Water NERFINISHED ⓘ |
| passesThrough |
Herefordshire
NERFINISHED
ⓘ
Powys NERFINISHED ⓘ West Midlands NERFINISHED ⓘ Worcestershire NERFINISHED ⓘ |
| purpose | municipal water supply ⓘ |
| serves | Birmingham NERFINISHED ⓘ |
| significantProjectOf | Birmingham Corporation Water Department NERFINISHED ⓘ |
| startPoint | Elan Valley NERFINISHED ⓘ |
| terminusFacility | Frankley Reservoir NERFINISHED ⓘ |
| transportedMedium | drinking water ⓘ |
| waterSource |
Claerwen Reservoir
NERFINISHED
ⓘ
Elan Valley Reservoirs NERFINISHED ⓘ |
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: Elan Aqueduct Description of subject: The Elan Aqueduct is a long-distance water supply system in Wales that transports drinking water from the Elan Valley to the city of Birmingham.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.