Triple
T1344286
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cardiff Queen Street |
E28533
|
entity |
| Predicate | servesLine |
P839
|
FINISHED |
| Object |
Merthyr Line
The Merthyr Line is a commuter rail route in South Wales that connects Cardiff with Merthyr Tydfil and surrounding Valleys communities.
|
E160327
|
NE FINISHED |
How this triple was built (4 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: Merthyr Line | Statement: [Cardiff Queen Street, servesLine, Merthyr Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Merthyr Line Context triple: [Cardiff Queen Street, servesLine, Merthyr Line]
-
A.
Rhymney Line
The Rhymney Line is a suburban railway route in South Wales that connects Cardiff with the town of Rhymney, forming part of the Valley Lines network.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
Heart of Wales Line
The Heart of Wales Line is a scenic rural railway route in Wales and the English borderlands, known for its picturesque landscapes, small request-stop stations, and leisurely services connecting Swansea and Shrewsbury.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Merthyr Line Triple: [Cardiff Queen Street, servesLine, Merthyr Line]
Generated description
The Merthyr Line is a commuter rail route in South Wales that connects Cardiff with Merthyr Tydfil and surrounding Valleys communities.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Merthyr Line Target entity description: The Merthyr Line is a commuter rail route in South Wales that connects Cardiff with Merthyr Tydfil and surrounding Valleys communities.
-
A.
Rhymney Line
The Rhymney Line is a suburban railway route in South Wales that connects Cardiff with the town of Rhymney, forming part of the Valley Lines network.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
Heart of Wales Line
The Heart of Wales Line is a scenic rural railway route in Wales and the English borderlands, known for its picturesque landscapes, small request-stop stations, and leisurely services connecting Swansea and Shrewsbury.
- 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_69a49854eb3481908c7d56b2e449a290 |
completed | March 1, 2026, 7:49 p.m. |
| NER | Named-entity recognition | batch_69a4c23b8a9081908b78405d4ef806af |
completed | March 1, 2026, 10:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acde1555048190b73c1616d1979b08 |
completed | March 8, 2026, 2:25 a.m. |
| NEDg | Description generation | batch_69acdee073fc819098c906d91870b317 |
completed | March 8, 2026, 2:28 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ace0a7ddc08190a44be1707587351b |
completed | March 8, 2026, 2:36 a.m. |
Created at: March 1, 2026, 7:56 p.m.