Triple

T522381
Position Surface form Disambiguated ID Type / Status
Subject Transport for Wales Rail E10845 entity
Predicate operatesOnLine P15252 FINISHED
Object 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.
E65697 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: Heart of Wales Line | Statement: [Transport for Wales Rail, operatesOnLine, Heart of Wales Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Heart of Wales Line
Context triple: [Transport for Wales Rail, operatesOnLine, Heart of Wales Line]
  • A. 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.
  • 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. Welsh Marches Line
    The Welsh Marches Line is a major railway route in the United Kingdom running through the border counties between England and Wales, linking cities such as Shrewsbury, Hereford, and Newport.
  • D. Talyllyn Railway
    Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
  • E. 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.
  • 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: Heart of Wales Line
Triple: [Transport for Wales Rail, operatesOnLine, Heart of Wales Line]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Heart of Wales Line
Target entity description: 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.
  • A. 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.
  • 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. Welsh Marches Line
    The Welsh Marches Line is a major railway route in the United Kingdom running through the border counties between England and Wales, linking cities such as Shrewsbury, Hereford, and Newport.
  • D. Talyllyn Railway
    Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
  • E. 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.
  • 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_69a2e84b16c4819088d284c47c3a7968 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f3b7557c8190a29cf1de359ea2ea completed Feb. 28, 2026, 1:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4b23dca0c8190b240bb7c9fb8b799 completed March 1, 2026, 9:40 p.m.
NEDg Description generation batch_69a4b30e28b08190994811d66a091d6b completed March 1, 2026, 9:43 p.m.
NED2 Entity disambiguation (via description) batch_69a4b384035c8190b7408b2232626d19 completed March 1, 2026, 9:45 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.