Triple

T5501732
Position Surface form Disambiguated ID Type / Status
Subject Rail Express Systems E144343 entity
Predicate usedRollingStock P5426 FINISHED
Object Mark 1 TPO coaches
Mark 1 TPO coaches were British Rail postal sorting and carriage vehicles derived from the Mark 1 coach design, used for Travelling Post Office services across the UK rail network.
 E532234 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: Mark 1 TPO coaches | Statement: [Rail Express Systems, usedRollingStock, Mark 1 TPO coaches]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mark 1 TPO coaches
Context triple: [Rail Express Systems, usedRollingStock, Mark 1 TPO coaches]
  • A. Mark 3 coaching stock
    Mark 3 coaching stock is a class of British Rail passenger carriages introduced in the 1970s, known for their high-speed capability, improved ride quality, and extensive use on intercity services across the UK rail network.
  • B. Mark 2 coaching stock
    Mark 2 coaching stock is a class of British Rail passenger carriages introduced in the 1960s, widely used across the UK rail network for intercity and regional services.
  • C. Mark-3
    Mark-3 is the third-generation Jaeger class to which the iconic mech Gipsy Danger belongs in the Pacific Rim universe.
  • D. Mark-4
    Mark-4 is a fourth-generation Jaeger classification used in the Pacific Rim universe, denoting advanced combat robots like Crimson Typhoon.
  • E. Nosek
    Nosek is a Polish-origin surname borne by various notable individuals across fields such as technology, sports, and academia.
  • 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: Mark 1 TPO coaches
Triple: [Rail Express Systems, usedRollingStock, Mark 1 TPO coaches]
Generated description
Mark 1 TPO coaches were British Rail postal sorting and carriage vehicles derived from the Mark 1 coach design, used for Travelling Post Office services across the UK rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mark 1 TPO coaches
Target entity description: Mark 1 TPO coaches were British Rail postal sorting and carriage vehicles derived from the Mark 1 coach design, used for Travelling Post Office services across the UK rail network.
  • A. Mark 3 coaching stock
    Mark 3 coaching stock is a class of British Rail passenger carriages introduced in the 1970s, known for their high-speed capability, improved ride quality, and extensive use on intercity services across the UK rail network.
  • B. Mark 2 coaching stock
    Mark 2 coaching stock is a class of British Rail passenger carriages introduced in the 1960s, widely used across the UK rail network for intercity and regional services.
  • C. Mark-3
    Mark-3 is the third-generation Jaeger class to which the iconic mech Gipsy Danger belongs in the Pacific Rim universe.
  • D. Mark-4
    Mark-4 is a fourth-generation Jaeger classification used in the Pacific Rim universe, denoting advanced combat robots like Crimson Typhoon.
  • E. Nosek
    Nosek is a Polish-origin surname borne by various notable individuals across fields such as technology, sports, and academia.
  • 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_69c008f5a2748190bce7a39aabf87a6d completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c01f0a512c81908f077378917e5879 completed March 22, 2026, 4:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69c027a10fa08190853d45354fd9b044 completed March 22, 2026, 5:32 p.m.
NEDg Description generation batch_69c0345909388190bfa746d22474ab8f completed March 22, 2026, 6:26 p.m.
NED2 Entity disambiguation (via description) batch_69c0354e95808190b4386e2796291dba completed March 22, 2026, 6:30 p.m.
Created at: March 22, 2026, 3:32 p.m.