Triple
T18698946
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Clywedog Reservoir |
E457195
|
entity |
| Predicate | hasStructure |
P35
|
FINISHED |
| Object | Clywedog Dam |
—
|
NE NERFINISHED |
How this triple was built (3 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Clywedog Dam | Statement: [Clywedog Reservoir, hasStructure, Clywedog Dam]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Clywedog Dam Context triple: [Clywedog Reservoir, hasStructure, Clywedog Dam]
-
A.
Vyrnwy Dam
Vyrnwy Dam is a historic stone-built dam in Powys, Wales, notable for creating Lake Vyrnwy and being one of the first large masonry dams in the United Kingdom.
-
B.
Claerwen Dam
Claerwen Dam is a large concrete gravity dam in mid-Wales, forming part of the Elan Valley reservoir system that supplies water to Birmingham.
-
C.
Clywedog Reservoir
Clywedog Reservoir is a large man-made lake in mid-Wales, created for water regulation and recreation amid scenic upland surroundings.
-
D.
Rhodhiss Dam
Rhodhiss Dam is a hydroelectric dam on the Catawba River in North Carolina that forms Lake Rhodhiss and helps provide power and water supply to the surrounding region.
-
E.
Garreg Ddu Reservoir
Garreg Ddu Reservoir is a scenic man-made lake in the Elan Valley of mid-Wales, known for its distinctive submerged dam and role in supplying water to the city of Birmingham.
- 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: Clywedog Dam Target entity description: Clywedog Dam is a large concrete buttress dam in Powys, Wales, built in the 1960s to regulate the flow of the River Severn and create the Clywedog Reservoir for water supply and flood control.
-
A.
Vyrnwy Dam
Vyrnwy Dam is a historic stone-built dam in Powys, Wales, notable for creating Lake Vyrnwy and being one of the first large masonry dams in the United Kingdom.
-
B.
Claerwen Dam
Claerwen Dam is a large concrete gravity dam in mid-Wales, forming part of the Elan Valley reservoir system that supplies water to Birmingham.
-
C.
Clywedog Reservoir
chosen
Clywedog Reservoir is a large man-made lake in mid-Wales, created for water regulation and recreation amid scenic upland surroundings.
-
D.
Rhodhiss Dam
Rhodhiss Dam is a hydroelectric dam on the Catawba River in North Carolina that forms Lake Rhodhiss and helps provide power and water supply to the surrounding region.
-
E.
Garreg Ddu Reservoir
Garreg Ddu Reservoir is a scenic man-made lake in the Elan Valley of mid-Wales, known for its distinctive submerged dam and role in supplying water to the city of Birmingham.
- F. None of above.
Provenance (2 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d8d392aad081909fe31aa03e6e97d1 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e562ea4ee48190b18a29553371f31a |
completed | April 19, 2026, 11:19 p.m. |
Created at: April 10, 2026, 11:49 a.m.