Triple

T262060
Position Surface form Disambiguated ID Type / Status
Subject Tokyo E5560 entity
Predicate hasMetroSystem P522 FINISHED
Object Tokyo Metro
Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
E34803 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 | Statement: [Tokyo, hasMetroSystem, Tokyo Metro]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tokyo Metro
Context triple: [Tokyo, hasMetroSystem, Tokyo Metro]
  • A. Tokyu Den-en-toshi Line
    Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
  • B. Tokyo Metro Hanzomon Line
    The Tokyo Metro Hanzomon Line is a major Tokyo subway line that runs east–west across the city center, linking Shibuya with key business and residential districts and offering through services onto private railway lines.
  • C. Tokyo Metro Fukutoshin Line
    The Tokyo Metro Fukutoshin Line is a major Tokyo subway line running north–south through central and suburban areas, connecting key hubs such as Shibuya with other important districts.
  • D. Tokyo Metro Ginza Line
    The Tokyo Metro Ginza Line is one of Tokyo’s oldest and most central subway lines, running east–west through major commercial and business districts including Shibuya and Ginza.
  • E. Tokyu Toyoko Line
    The Tokyu Toyoko Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Yokohama and links to multiple subway and intercity 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: Tokyo Metro
Triple: [Tokyo, hasMetroSystem, Tokyo Metro]
Generated description
Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tokyo Metro
Target entity description: Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
  • A. Tokyu Den-en-toshi Line
    Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
  • B. Tokyo Metro Hanzomon Line
    The Tokyo Metro Hanzomon Line is a major Tokyo subway line that runs east–west across the city center, linking Shibuya with key business and residential districts and offering through services onto private railway lines.
  • C. Tokyo Metro Fukutoshin Line
    The Tokyo Metro Fukutoshin Line is a major Tokyo subway line running north–south through central and suburban areas, connecting key hubs such as Shibuya with other important districts.
  • D. Tokyo Metro Ginza Line
    The Tokyo Metro Ginza Line is one of Tokyo’s oldest and most central subway lines, running east–west through major commercial and business districts including Shibuya and Ginza.
  • E. Tokyu Toyoko Line
    The Tokyu Toyoko Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Yokohama and links to multiple subway and intercity 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_69a2580a64ac8190ad76e34bb0715b5e completed Feb. 28, 2026, 2:50 a.m.
NER Named-entity recognition batch_69a25d7428dc8190ae12b12a21fcc6cb completed Feb. 28, 2026, 3:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69a38b8ca1f08190a13733c03b9161f9 completed March 1, 2026, 12:42 a.m.
NEDg Description generation batch_69a38bcc7d3c8190a2a1216f58631c5c completed March 1, 2026, 12:43 a.m.
NED2 Entity disambiguation (via description) batch_69a38c56810c8190922ad62014393734 completed March 1, 2026, 12:46 a.m.
Created at: Feb. 28, 2026, 2:55 a.m.