Triple

T17153239
Position Surface form Disambiguated ID Type / Status
Subject Seoul Subway Line 9 E416274 entity
Predicate rollingStock P1305 FINISHED
Object Hyundai Rotem metro trains
Hyundai Rotem metro trains are modern electric multiple units manufactured by South Korean company Hyundai Rotem, widely used in urban rapid transit systems for high-capacity, efficient passenger service.
E246227 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: Hyundai Rotem metro trains | Statement: [Seoul Subway Line 9, rollingStock, Hyundai Rotem metro trains]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hyundai Rotem metro trains
Context triple: [Seoul Subway Line 9, rollingStock, Hyundai Rotem metro trains]
  • A. Hyundai Rotem low-floor tram
    The Hyundai Rotem low-floor tram is a modern, accessible light-rail vehicle designed for urban public transport, featuring a low-floor design for easy boarding and efficient passenger flow.
  • 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. Kinkisharyo light rail vehicles
    Kinkisharyo light rail vehicles are modern electric multiple-unit trains manufactured by the Japanese company Kinki Sharyo, widely used in North American light rail systems for urban passenger transit.
  • D. BTS EMU trainsets
    BTS EMU trainsets are electric multiple-unit trains that operate on Bangkok’s BTS Skytrain rapid transit system.
  • E. MARTA heavy rail cars
    MARTA heavy rail cars are electric multiple-unit subway trains used to provide rapid transit service on Atlanta’s Metropolitan Atlanta Rapid Transit Authority rail system.
  • 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: Hyundai Rotem metro trains
Triple: [Seoul Subway Line 9, rollingStock, Hyundai Rotem metro trains]
Generated description
Hyundai Rotem metro trains are modern electric multiple units manufactured by South Korean company Hyundai Rotem, widely used in urban rapid transit systems for high-capacity, efficient passenger service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hyundai Rotem metro trains
Target entity description: Hyundai Rotem metro trains are modern electric multiple units manufactured by South Korean company Hyundai Rotem, widely used in urban rapid transit systems for high-capacity, efficient passenger service.
  • A. Hyundai Rotem low-floor tram chosen
    The Hyundai Rotem low-floor tram is a modern, accessible light-rail vehicle designed for urban public transport, featuring a low-floor design for easy boarding and efficient passenger flow.
  • 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. Kinkisharyo light rail vehicles
    Kinkisharyo light rail vehicles are modern electric multiple-unit trains manufactured by the Japanese company Kinki Sharyo, widely used in North American light rail systems for urban passenger transit.
  • D. BTS EMU trainsets
    BTS EMU trainsets are electric multiple-unit trains that operate on Bangkok’s BTS Skytrain rapid transit system.
  • E. MARTA heavy rail cars
    MARTA heavy rail cars are electric multiple-unit subway trains used to provide rapid transit service on Atlanta’s Metropolitan Atlanta Rapid Transit Authority rail system.
  • F. None of above.

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_69d886d279c081909f8ff1f743ddeb69 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3f4092c40819096359ff90af16c3e completed April 18, 2026, 9:13 p.m.
NED1 Entity disambiguation (via context triple) batch_6a01415d19288190beb3c94da2ce8c0e completed May 11, 2026, 2:39 a.m.
NEDg Description generation batch_6a01422c0f088190b162c7086bc93585 completed May 11, 2026, 2:42 a.m.
NED2 Entity disambiguation (via description) batch_6a0142f274ec819081eb15a3ea0e1b13 completed May 11, 2026, 2:46 a.m.
Created at: April 10, 2026, 5:37 a.m.