Triple
T17920408
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North West London |
E448050
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object | Brent Reservoir (Welsh Harp) |
—
|
NE NERFINISHED |
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: Brent Reservoir (Welsh Harp) | Statement: [North West London, contains, Brent Reservoir (Welsh Harp)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brent Reservoir (Welsh Harp) Context triple: [North West London, contains, Brent Reservoir (Welsh Harp)]
-
A.
Brent Reservoir (Welsh Harp)
chosen
Brent Reservoir, commonly known as the Welsh Harp, is a large artificial lake and nature reserve in northwest London renowned for its wildlife, sailing, and recreational activities.
-
B.
Claerwen Reservoir
Claerwen Reservoir is a large upland water reservoir in mid Wales, known for its impressive dam and scenic surroundings within the Elan Valley.
-
C.
Brent Reservoir
Brent Reservoir is an artificial lake in northwest London, England, created by damming the River Brent and now used for recreation and wildlife conservation.
-
D.
Clywedog Reservoir
Clywedog Reservoir is a large man-made lake in mid-Wales, created for water regulation and recreation amid scenic upland surroundings.
-
E.
Taf Fechan Reservoir
Taf Fechan Reservoir is a man-made lake in the Brecon Beacons of South Wales, constructed to supply drinking water and now also valued for its scenic surroundings and outdoor recreation.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d8b9f6d394819082a6d69fd1e23d2f |
completed | April 10, 2026, 8:51 a.m. |
| NER | Named-entity recognition | batch_69e4a309532881908633bd723923880f |
completed | April 19, 2026, 9:40 a.m. |
Created at: April 10, 2026, 10:20 a.m.