Triple
T17213129
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Carmarthen railway station |
E417780
|
entity |
| Predicate | formerLineServed |
P126423
|
FINISHED |
| Object | Carmarthen–Aberystwyth line |
E91422
|
NE FINISHED |
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: Carmarthen–Aberystwyth line | Statement: [Carmarthen railway station, formerLineServed, Carmarthen–Aberystwyth line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Carmarthen–Aberystwyth line Context triple: [Carmarthen railway station, formerLineServed, Carmarthen–Aberystwyth line]
-
A.
Shrewsbury–Aberystwyth line
The Shrewsbury–Aberystwyth line is a rural railway route in Wales that connects the English border town of Shrewsbury with the coastal town of Aberystwyth, forming the eastern section of the Cambrian Line.
-
B.
West Wales Line
chosen
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.
-
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.
Merthyr Line
The Merthyr Line is a commuter rail route in South Wales that connects Cardiff with Merthyr Tydfil and surrounding Valleys communities.
-
E.
Vale of Glamorgan Line
The Vale of Glamorgan Line is a railway route in South Wales that connects Cardiff with coastal towns such as Barry and Bridgend, serving both commuter and regional passenger traffic.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: formerLineServed Context triple: [Carmarthen railway station, formerLineServed, Carmarthen–Aberystwyth line]
-
A.
lineServed
Indicates that a particular transportation line (such as a bus, train, or metro line) provides service to or is operated at a given stop, station, or route segment.
-
B.
lineOriginallyServed
Indicates that a particular transit or service line initially operated or provided service to a specified location, route, or entity.
-
C.
servedByLine
Indicates that a transportation stop, station, or location is provided service by a specific transit line.
-
D.
servesLineSince
Indicates that a transportation service or route has been operating on a particular line since a specified point in time.
-
E.
formerLineName
Indicates that the object is a previous or former name by which the referenced line was known.
- F. None of above. chosen
Provenance (5 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_69d886d779488190b131369541c04e7d |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e42dc795d08190b90801a4f8b23afe |
completed | April 19, 2026, 1:20 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a01793cfaf08190bff9a6efe01d5bea |
completed | May 11, 2026, 6:37 a.m. |
| PD | Predicate disambiguation | batch_69e3831e354881908c5505ffd15c84e9 |
completed | April 18, 2026, 1:11 p.m. |
| PDg | Predicate description generation | batch_69e3873f62108190966c4e741ebd548d |
completed | April 18, 2026, 1:29 p.m. |
Created at: April 10, 2026, 5:38 a.m.