Triple

T21569098
Position Surface form Disambiguated ID Type / Status
Subject Rail Express Systems E532237 entity
Predicate trainTypeUsed P56947 FINISHED
Object Travelling Post Office coaches
Travelling Post Office coaches were specially equipped railway carriages used for sorting and transporting mail while trains were in motion across the rail network.
 E1491331 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: Travelling Post Office coaches | Statement: [Rail Express Systems, trainTypeUsed, Travelling Post Office coaches]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Travelling Post Office coaches
Context triple: [Rail Express Systems, trainTypeUsed, Travelling Post Office coaches]
  • A. Corail coaches
    Corail coaches are a class of long-distance passenger railway carriages widely used in France for comfortable intercity services.
  • B. Stagecoach Rail
    Stagecoach Rail was the rail transport division of Stagecoach Group, operating passenger train services in the United Kingdom before the brand was retired.
  • C. X90 Oxford–London coaches
    X90 Oxford–London coaches were a former express coach service linking Oxford and London, operated by the Oxford Bus Company.
  • D. Whippet Coaches
    Whippet Coaches is a British bus and coach company that operates public transport services, including routes on the Cambridge Guided Busway.
  • E. Shoreliner coaches
    Shoreliner coaches are a type of commuter rail passenger car commonly used in the Northeastern United States, known for their bilevel-like high-capacity design and compatibility with push-pull train operations.
  • 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: Travelling Post Office coaches
Triple: [Rail Express Systems, trainTypeUsed, Travelling Post Office coaches]
Generated description
Travelling Post Office coaches were specially equipped railway carriages used for sorting and transporting mail while trains were in motion across the rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Travelling Post Office coaches
Target entity description: Travelling Post Office coaches were specially equipped railway carriages used for sorting and transporting mail while trains were in motion across the rail network.
  • A. Corail coaches
    Corail coaches are a class of long-distance passenger railway carriages widely used in France for comfortable intercity services.
  • B. Stagecoach Rail
    Stagecoach Rail was the rail transport division of Stagecoach Group, operating passenger train services in the United Kingdom before the brand was retired.
  • C. X90 Oxford–London coaches
    X90 Oxford–London coaches were a former express coach service linking Oxford and London, operated by the Oxford Bus Company.
  • D. Whippet Coaches
    Whippet Coaches is a British bus and coach company that operates public transport services, including routes on the Cambridge Guided Busway.
  • E. Shoreliner coaches
    Shoreliner coaches are a type of commuter rail passenger car commonly used in the Northeastern United States, known for their bilevel-like high-capacity design and compatibility with push-pull train operations.
  • 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_69e0c460db088190828c64206a450273 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69eee9cb9718819094fc95b25df68bd1 completed April 27, 2026, 4:44 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09f6707578819095e5ac0312066df6 completed May 17, 2026, 5:10 p.m.
NEDg Description generation batch_6a09f71df0308190b5953a76da60c6d4 completed May 17, 2026, 5:13 p.m.
NED2 Entity disambiguation (via description) batch_6a09f80784648190ae073b4db90032c1 completed May 17, 2026, 5:16 p.m.
Created at: April 16, 2026, 6:30 p.m.