Triple

T4569242
Position Surface form Disambiguated ID Type / Status
Subject Muni Metro T Third Street line E122988 entity
Predicate usesSubway P17559 FINISHED
Object Central Subway E17240 NE FINISHED

How this triple was built (3 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: Central Subway | Statement: [Muni Metro T Third Street line, usesSubway, Central Subway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Central Subway
Context triple: [Muni Metro T Third Street line, usesSubway, Central Subway]
  • A. Central Subway chosen
    Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
  • B. 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.
  • C. Keio Inokashira Line
    The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
  • D. 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.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: usesSubway
Context triple: [Muni Metro T Third Street line, usesSubway, Central Subway]
  • A. hasSubway
    Indicates that a place is served by or contains a subway (metro) system.
  • B. hasSubwayComplex
    Indicates that one entity contains or is associated with a subway complex as part of its structure or facilities.
  • C. hasMetroLine chosen
    Indicates that a location or area is served by, or connected to, a specific metro (subway) line.
  • D. openedAsSubway
    Indicates that a transportation facility or line originally began operation specifically as a subway service.
  • E. hasUndergroundConnections
    Indicates that one entity is linked to another through subterranean or hidden passageways, networks, or channels.
  • F. None of above.

Provenance (4 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_69bd46466c7081909d07f36be2d08804 completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd58a0dfbc81909b5023f0c29addaf completed March 20, 2026, 2:24 p.m.
NED1 Entity disambiguation (via context triple) batch_69be43897d5c8190a4119f1c90d0318b completed March 21, 2026, 7:06 a.m.
PD Predicate disambiguation batch_69bd5227063c8190973155a875b013a7 completed March 20, 2026, 1:56 p.m.
Created at: March 20, 2026, 1:10 p.m.