Triple
T10160287
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Elan Valley reservoirs |
E233870
|
entity |
| Predicate | hasStructure |
P35
|
FINISHED |
| Object | Pen-y-garreg Dam |
E239821
|
NE FINISHED |
How this triple was built (2 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: Pen-y-garreg Dam | Statement: [Elan Valley reservoirs, hasStructure, Pen-y-garreg Dam]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pen-y-garreg Dam Context triple: [Elan Valley reservoirs, hasStructure, Pen-y-garreg Dam]
-
A.
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.
-
B.
Abbeystead Dam
Abbeystead Dam is a small reservoir dam in Lancashire, England, known for its role in the 1984 Abbeystead disaster explosion.
-
C.
Pen-y-garreg Reservoir
chosen
Pen-y-garreg Reservoir is a scenic man-made lake in the Elan Valley of mid Wales, known for its historic stone dam and role in the region’s water supply system.
-
D.
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.
-
E.
Bleiloch Dam
Bleiloch Dam is a large hydroelectric and flood-control dam in Thuringia, Germany, forming the country’s biggest reservoir on the upper Saale River.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca848e80748190b91d1e04d35512c7 |
completed | March 30, 2026, 2:11 p.m. |
| NER | Named-entity recognition | batch_69cdec5831e481909b48fdfa8f1c670b |
completed | April 2, 2026, 4:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d89f25c16c8190a17dc19e3e1b197a |
completed | April 10, 2026, 6:56 a.m. |
Created at: March 30, 2026, 9:09 p.m.