Triple

T23001137
Position Surface form Disambiguated ID Type / Status
Subject CRRC Qingdao Sifang E572634 entity
Predicate notableWork P4 FINISHED
Object Singapore MRT trains (C151A, C151B, C151C, T251, etc.)
Singapore MRT trains (C151A, C151B, C151C, T251, etc.) are modern electric multiple unit train sets operating on Singapore’s Mass Rapid Transit network, providing high-capacity, high-frequency urban rail transport.
 E1565503 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: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) | Statement: [CRRC Qingdao Sifang, notableWork, Singapore MRT trains (C151A, C151B, C151C, T251, etc.)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Singapore MRT trains (C151A, C151B, C151C, T251, etc.)
Context triple: [CRRC Qingdao Sifang, notableWork, Singapore MRT trains (C151A, C151B, C151C, T251, etc.)]
  • A. SMRT Trains
    SMRT Trains is a major rail operator in Singapore responsible for running key lines of the Mass Rapid Transit (MRT) system.
  • B. E-series metro trains
    E-series metro trains are an earlier generation of Soviet-designed electric multiple units that served as a foundational model for later metro rolling stock across various Eastern European and former Soviet cities.
  • C. M1 trains
    M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
  • D. Mass Rapid Transit (MRT) network of Singapore
    The Mass Rapid Transit (MRT) network of Singapore is a high-capacity urban rail system that forms the backbone of the city-state’s public transport, efficiently connecting key residential, commercial, and industrial areas.
  • E. MTR EMU trains
    MTR EMU trains are electric multiple unit passenger trains operated by Hong Kong’s MTR system, designed for high-frequency urban and suburban rail 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: Singapore MRT trains (C151A, C151B, C151C, T251, etc.)
Triple: [CRRC Qingdao Sifang, notableWork, Singapore MRT trains (C151A, C151B, C151C, T251, etc.)]
Generated description
Singapore MRT trains (C151A, C151B, C151C, T251, etc.) are modern electric multiple unit train sets operating on Singapore’s Mass Rapid Transit network, providing high-capacity, high-frequency urban rail transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Singapore MRT trains (C151A, C151B, C151C, T251, etc.)
Target entity description: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) are modern electric multiple unit train sets operating on Singapore’s Mass Rapid Transit network, providing high-capacity, high-frequency urban rail transport.
  • A. SMRT Trains
    SMRT Trains is a major rail operator in Singapore responsible for running key lines of the Mass Rapid Transit (MRT) system.
  • B. E-series metro trains
    E-series metro trains are an earlier generation of Soviet-designed electric multiple units that served as a foundational model for later metro rolling stock across various Eastern European and former Soviet cities.
  • C. M1 trains
    M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
  • D. Mass Rapid Transit (MRT) network of Singapore
    The Mass Rapid Transit (MRT) network of Singapore is a high-capacity urban rail system that forms the backbone of the city-state’s public transport, efficiently connecting key residential, commercial, and industrial areas.
  • E. MTR EMU trains
    MTR EMU trains are electric multiple unit passenger trains operated by Hong Kong’s MTR system, designed for high-frequency urban and suburban rail 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_69e245b6a3ac81908087599eefe3e365 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f18352bcf48190bd474eff69b3465b completed April 29, 2026, 4:04 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0bd380d84c8190ad825e4ef92e6c93 completed May 19, 2026, 3:05 a.m.
NEDg Description generation batch_6a0bd780bf048190be000d6b01b7a69e completed May 19, 2026, 3:22 a.m.
NED2 Entity disambiguation (via description) batch_6a0bd80b76248190b3878e6f6992db25 completed May 19, 2026, 3:24 a.m.
Created at: April 17, 2026, 3:50 p.m.