Triple

T5841904
Position Surface form Disambiguated ID Type / Status
Subject Turbostar E129612 entity
Predicate successor P78 FINISHED
Object Bombardier Electrostar (electric multiple unit family)
The Bombardier Electrostar is a widely used family of British electric multiple unit trains known for their modular design and operation on suburban and commuter rail services.
 E598720 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: Bombardier Electrostar (electric multiple unit family) | Statement: [Turbostar, successor, Bombardier Electrostar (electric multiple unit family)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Bombardier Electrostar (electric multiple unit family)
Context triple: [Turbostar, successor, Bombardier Electrostar (electric multiple unit family)]
  • A. British Rail Class 156
    The British Rail Class 156 is a diesel multiple-unit passenger train built in the late 1980s for regional and local services across the UK rail network.
  • B. British Rail Class 142
    The British Rail Class 142 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK, known for its bus-derived body design and basic ride quality.
  • C. British Rail Class 325
    The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
  • D. British Rail Class 121
    The British Rail Class 121 is a type of single-car diesel multiple unit railcar introduced in the 1960s for use on lightly used branch lines and suburban services in the UK.
  • E. British Rail Class 155
    The British Rail Class 155 is a type of diesel multiple unit passenger train built in the late 1980s for regional services on the UK rail network.
  • 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: Bombardier Electrostar (electric multiple unit family)
Triple: [Turbostar, successor, Bombardier Electrostar (electric multiple unit family)]
Generated description
The Bombardier Electrostar is a widely used family of British electric multiple unit trains known for their modular design and operation on suburban and commuter rail services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Bombardier Electrostar (electric multiple unit family)
Target entity description: The Bombardier Electrostar is a widely used family of British electric multiple unit trains known for their modular design and operation on suburban and commuter rail services.
  • A. British Rail Class 156
    The British Rail Class 156 is a diesel multiple-unit passenger train built in the late 1980s for regional and local services across the UK rail network.
  • B. British Rail Class 142
    The British Rail Class 142 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK, known for its bus-derived body design and basic ride quality.
  • C. British Rail Class 325
    The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
  • D. British Rail Class 121
    The British Rail Class 121 is a type of single-car diesel multiple unit railcar introduced in the 1960s for use on lightly used branch lines and suburban services in the UK.
  • E. British Rail Class 155
    The British Rail Class 155 is a type of diesel multiple unit passenger train built in the late 1980s for regional services on the UK rail network.
  • 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_69c0084bd31c8190a796bb6284845e83 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c034d876fc819089818c731116af56 completed March 22, 2026, 6:28 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6855bd42c8190a9fbebd5176d63fd completed March 27, 2026, 1:25 p.m.
NEDg Description generation batch_69c6994dafac819097586bd23aee35c4 completed March 27, 2026, 2:50 p.m.
NED2 Entity disambiguation (via description) batch_69c6ac08698c8190b8a0a9625492353b completed March 27, 2026, 4:10 p.m.
Created at: March 22, 2026, 3:54 p.m.