Triple

T13740466
Position Surface form Disambiguated ID Type / Status
Subject South Wales Metro E330071 entity
Predicate includesLine P2124 FINISHED
Object Marches Line (Cardiff–Newport section)
The Marches Line (Cardiff–Newport section) is a key railway corridor in South Wales linking Cardiff and Newport as part of the broader Marches Line route between South Wales and the English Midlands.
E1057711 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: Marches Line (Cardiff–Newport section) | Statement: [South Wales Metro, includesLine, Marches Line (Cardiff–Newport section)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Marches Line (Cardiff–Newport section)
Context triple: [South Wales Metro, includesLine, Marches Line (Cardiff–Newport section)]
  • A. 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.
  • B. Cardiff to Portsmouth Line
    The Cardiff to Portsmouth Line is a major cross-country railway route in the United Kingdom linking South Wales with the south coast of England via cities such as Bristol and Southampton.
  • C. Swansea–Cardiff line
    The Swansea–Cardiff line is a key railway route in South Wales that connects the cities of Swansea and Cardiff and serves numerous intermediate towns and communities.
  • D. Montgomery–Llanymynech section
    The Montgomery–Llanymynech section is a scenic stretch of the Offa’s Dyke Path long-distance trail running between the Welsh town of Montgomery and the village of Llanymynech along the England–Wales border.
  • E. Bodfari–Prestatyn section
    The Bodfari–Prestatyn section is a scenic final stretch of the Offa’s Dyke Path in North Wales, running over rolling hills to the coastal town of Prestatyn.
  • 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: Marches Line (Cardiff–Newport section)
Triple: [South Wales Metro, includesLine, Marches Line (Cardiff–Newport section)]
Generated description
The Marches Line (Cardiff–Newport section) is a key railway corridor in South Wales linking Cardiff and Newport as part of the broader Marches Line route between South Wales and the English Midlands.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Marches Line (Cardiff–Newport section)
Target entity description: The Marches Line (Cardiff–Newport section) is a key railway corridor in South Wales linking Cardiff and Newport as part of the broader Marches Line route between South Wales and the English Midlands.
  • A. 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.
  • B. Cardiff to Portsmouth Line
    The Cardiff to Portsmouth Line is a major cross-country railway route in the United Kingdom linking South Wales with the south coast of England via cities such as Bristol and Southampton.
  • C. Swansea–Cardiff line
    The Swansea–Cardiff line is a key railway route in South Wales that connects the cities of Swansea and Cardiff and serves numerous intermediate towns and communities.
  • D. Montgomery–Llanymynech section
    The Montgomery–Llanymynech section is a scenic stretch of the Offa’s Dyke Path long-distance trail running between the Welsh town of Montgomery and the village of Llanymynech along the England–Wales border.
  • E. Bodfari–Prestatyn section
    The Bodfari–Prestatyn section is a scenic final stretch of the Offa’s Dyke Path in North Wales, running over rolling hills to the coastal town of Prestatyn.
  • 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_69d80772315881908f980cae40d91664 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69de0206a4b88190a60914e2b43e54f9 completed April 14, 2026, 8:59 a.m.
NED1 Entity disambiguation (via context triple) batch_69f79d6bce9881909209231f6dfcf9bf completed May 3, 2026, 7:09 p.m.
NEDg Description generation batch_69f79e7869648190ab0157bd0480b219 completed May 3, 2026, 7:14 p.m.
NED2 Entity disambiguation (via description) batch_69f79f7216b08190800165d46172222c completed May 3, 2026, 7:18 p.m.
Created at: April 9, 2026, 9:55 p.m.