Triple
T18889882
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Machynlleth railway station |
E462054
|
entity |
| Predicate | locatedOnLine |
P2409
|
FINISHED |
| Object | Cambrian Line |
—
|
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: Cambrian Line | Statement: [Machynlleth railway station, locatedOnLine, Cambrian Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cambrian Line Context triple: [Machynlleth railway station, locatedOnLine, Cambrian Line]
-
A.
Cambrian Line
chosen
The Cambrian Line is a scenic railway route in Wales that runs through rural mid-Wales to the west coast, connecting towns such as Shrewsbury, Aberystwyth, and Pwllheli.
-
B.
Marshlink Line
The Marshlink Line is a regional railway route in Southeast England that runs across the Romney Marsh, connecting Ashford International with Hastings and serving several rural communities.
-
C.
Watercress Line
The Watercress Line is a preserved heritage railway in Hampshire, England, known for its steam-hauled trains running through the countryside between Alton and Alresford.
-
D.
Fen Line
The Fen Line is a railway route in eastern England that runs north from Cambridge towards King’s Lynn, serving towns and communities across Cambridgeshire and Norfolk.
-
E.
Warminster Line
The Warminster Line is a commuter rail service in the Philadelphia region that connects Center City with suburban communities in and around Warminster, Pennsylvania.
- 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_69d8dcfc3430819095ee6fc0eb4c06a5 |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5c479f3208190a9d665865c4b630b |
completed | April 20, 2026, 6:15 a.m. |
Created at: April 10, 2026, 11:58 a.m.