Triple
T17378760
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Treforest |
E422509
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Treforest railway station |
—
|
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: Treforest railway station | Statement: [Treforest, servedBy, Treforest railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Treforest railway station Context triple: [Treforest, servedBy, Treforest railway station]
-
A.
Trawsfynydd railway station
Trawsfynydd railway station is a disused former railway station in Gwynedd, Wales, that once served the village of Trawsfynydd and its surrounding rural area.
-
B.
Treorchy railway station
Treorchy railway station is a local train stop in the town of Treorchy in Rhondda Cynon Taf, Wales, providing passenger rail services along the Rhondda Line.
-
C.
Radnor station
Radnor station is a SEPTA rapid transit stop in Radnor, Pennsylvania, serving passengers on the Norristown High Speed Line.
-
D.
Ystrad Mynach railway station
Ystrad Mynach railway station is a commuter rail stop in Caerphilly County Borough, Wales, providing local and regional services on the Valley Lines network.
-
E.
Tal-y-Cafn railway station
Tal-y-Cafn railway station is a small rural stop on the Conwy Valley Line in Wales, serving the village of Tal-y-Cafn and surrounding areas.
- 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: Treforest railway station Target entity description: Treforest railway station is a local rail stop in Treforest, Wales, providing passenger services on the Valley Lines network.
-
A.
Trawsfynydd railway station
Trawsfynydd railway station is a disused former railway station in Gwynedd, Wales, that once served the village of Trawsfynydd and its surrounding rural area.
-
B.
Treorchy railway station
Treorchy railway station is a local train stop in the town of Treorchy in Rhondda Cynon Taf, Wales, providing passenger rail services along the Rhondda Line.
-
C.
Radnor station
Radnor station is a SEPTA rapid transit stop in Radnor, Pennsylvania, serving passengers on the Norristown High Speed Line.
-
D.
Ystrad Mynach railway station
Ystrad Mynach railway station is a commuter rail stop in Caerphilly County Borough, Wales, providing local and regional services on the Valley Lines network.
-
E.
Tal-y-Cafn railway station
Tal-y-Cafn railway station is a small rural stop on the Conwy Valley Line in Wales, serving the village of Tal-y-Cafn and surrounding areas.
- F. None of above. chosen
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_69d889d6535c81908be333c01deaec4e |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e43a840cd08190af3385388afb8c8f |
completed | April 19, 2026, 2:14 a.m. |
Created at: April 10, 2026, 5:45 a.m.