Triple

T6093491
Position Surface form Disambiguated ID Type / Status
Subject Southern E135821 entity
Predicate usesRollingStockType P1305 FINISHED
Object Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
E572112 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: Class 455 EMU | Statement: [Southern, usesRollingStockType, Class 455 EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Class 455 EMU
Context triple: [Southern, usesRollingStockType, Class 455 EMU]
  • A. Class 745 EMU
    The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
  • B. Class 313 EMU
    The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
  • C. CP Class 3400 EMU
    The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
  • D. Class 720 EMU
    The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
  • E. DB Class 423 EMU
    The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
  • 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: Class 455 EMU
Triple: [Southern, usesRollingStockType, Class 455 EMU]
Generated description
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Class 455 EMU
Target entity description: The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
  • A. Class 745 EMU
    The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
  • B. Class 313 EMU
    The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
  • C. CP Class 3400 EMU
    The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
  • D. Class 720 EMU
    The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
  • E. DB Class 423 EMU
    The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
  • 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_69c0087cd3c48190b459848c72d84eb1 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c057ac8c7481909fb22cf157be45ce completed March 22, 2026, 8:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69c135879c988190bd35fa01674d6a15 completed March 23, 2026, 12:43 p.m.
NEDg Description generation batch_69c139e500c8819092834f51f3ea3ebc completed March 23, 2026, 1:02 p.m.
NED2 Entity disambiguation (via description) batch_69c13a4fa888819088a4174486427777 completed March 23, 2026, 1:04 p.m.
Created at: March 22, 2026, 4:12 p.m.