Triple

T9343464
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metro Hibiya Line E224820 entity
Predicate rollingStock P1305 FINISHED
Object Tokyo Metro 13000 series
The Tokyo Metro 13000 series is a modern electric multiple unit train operated by Tokyo Metro, introduced to provide improved comfort, efficiency, and accessibility on urban subway services.
 E792918 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: Tokyo Metro 13000 series | Statement: [Tokyo Metro Hibiya Line, rollingStock, Tokyo Metro 13000 series]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metro 13000 series
Context triple: [Tokyo Metro Hibiya Line, rollingStock, Tokyo Metro 13000 series]
  • A. Tokyo Metro 17000 series
    The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
  • B. Tokyo Metro 18000 series
    The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
  • C. Tokyo Metro 16000 series
    The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
  • D. Tokyo Metro 10000 series
    The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
  • E. Tokyo Metro 1000 series
    The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
  • 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: Tokyo Metro 13000 series
Triple: [Tokyo Metro Hibiya Line, rollingStock, Tokyo Metro 13000 series]
Generated description
The Tokyo Metro 13000 series is a modern electric multiple unit train operated by Tokyo Metro, introduced to provide improved comfort, efficiency, and accessibility on urban subway services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metro 13000 series
Target entity description: The Tokyo Metro 13000 series is a modern electric multiple unit train operated by Tokyo Metro, introduced to provide improved comfort, efficiency, and accessibility on urban subway services.
  • A. Tokyo Metro 17000 series
    The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
  • B. Tokyo Metro 18000 series
    The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
  • C. Tokyo Metro 16000 series
    The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
  • D. Tokyo Metro 10000 series
    The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
  • E. Tokyo Metro 1000 series
    The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
  • 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_69ca842993248190a79ab06968994b86 completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd4bb244e88190b269e0bc997f066a completed April 1, 2026, 4:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69d0e410bc348190b0cae142bf850bce completed April 4, 2026, 10:12 a.m.
NEDg Description generation batch_69d0e5c27ef08190af2edd539358750a completed April 4, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_69d0e638ba5481909b879418ae293739 completed April 4, 2026, 10:21 a.m.
Created at: March 30, 2026, 7:40 p.m.