Triple
T4742828
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pontypridd railway station |
E105286
|
entity |
| Predicate | railwayLine |
P848
|
FINISHED |
| Object | Cardiff–Merthyr Tydfil line |
E160327
|
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: Cardiff–Merthyr Tydfil line | Statement: [Pontypridd railway station, railwayLine, Cardiff–Merthyr Tydfil line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cardiff–Merthyr Tydfil line Context triple: [Pontypridd railway station, railwayLine, Cardiff–Merthyr Tydfil line]
-
A.
Merthyr Line
chosen
The Merthyr Line is a commuter rail route in South Wales that connects Cardiff with Merthyr Tydfil and surrounding Valleys communities.
-
B.
South Wales Main Line
The South Wales Main Line is a major railway route in Wales that connects London and the west of England with key South Wales cities such as Cardiff and Swansea.
-
C.
Cynwyd Line
The Cynwyd Line is a short commuter rail service in the Philadelphia area operated by SEPTA, running between Center City and the Cynwyd neighborhood in Lower Merion Township.
-
D.
West Wales Line
The West Wales Line is a railway route in southwest Wales that links the South Wales rail network to coastal towns such as Carmarthen, Milford Haven, and Fishguard.
-
E.
Rhondda Line
The Rhondda Line is a commuter rail route in South Wales that runs through the Rhondda Valleys, connecting local communities with larger hubs such as Pontypridd and Cardiff.
- 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_69bd43ef87a48190a5bc3600711aa032 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd64a85e9c81908e9c7bbbb998953e |
completed | March 20, 2026, 3:15 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be6f979ca88190bc0128812329cb24 |
completed | March 21, 2026, 10:14 a.m. |
Created at: March 20, 2026, 1:19 p.m.