Triple

T6536624
Position Surface form Disambiguated ID Type / Status
Subject Sunbury line E168179 entity
Predicate rollingStock P1305 FINISHED
Object Comeng EMU
The Comeng EMU is a long-serving class of electric multiple unit trains used on Melbourne's suburban rail network.
 E606704 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: Comeng EMU | Statement: [Sunbury line, rollingStock, Comeng EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Comeng EMU
Context triple: [Sunbury line, rollingStock, Comeng EMU]
  • A. Civia EMU
    Civia EMU is a class of electric multiple unit commuter trains used by Spain’s Renfe for suburban and regional passenger services.
  • B. 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.
  • C. X60 EMU
    The X60 EMU is a modern electric multiple unit train used for high-capacity commuter services in the Stockholm region.
  • D. 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.
  • E. 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.
  • 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: Comeng EMU
Triple: [Sunbury line, rollingStock, Comeng EMU]
Generated description
The Comeng EMU is a long-serving class of electric multiple unit trains used on Melbourne's suburban rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Comeng EMU
Target entity description: The Comeng EMU is a long-serving class of electric multiple unit trains used on Melbourne's suburban rail network.
  • A. Civia EMU
    Civia EMU is a class of electric multiple unit commuter trains used by Spain’s Renfe for suburban and regional passenger services.
  • B. 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.
  • C. X60 EMU
    The X60 EMU is a modern electric multiple unit train used for high-capacity commuter services in the Stockholm region.
  • D. 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.
  • E. 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.
  • 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_69c68a51564081909e93aee0dbd9cca3 completed March 27, 2026, 1:46 p.m.
NER Named-entity recognition batch_69c6adc238688190aca143b22b8a399c completed March 27, 2026, 4:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6e41b0a8881908aebef421a6d403c completed March 27, 2026, 8:10 p.m.
NEDg Description generation batch_69c6e57d71ec8190b79615f11eadec26 completed March 27, 2026, 8:15 p.m.
NED2 Entity disambiguation (via description) batch_69c6e614f04c8190b25b553553895799 completed March 27, 2026, 8:18 p.m.
Created at: March 27, 2026, 1:49 p.m.