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.