Triple

T3047639
Position Surface form Disambiguated ID Type / Status
Subject Toyota City E83487 entity
Predicate railwayServedBy P782 FINISHED
Object Meitetsu Mikawa Line
The Meitetsu Mikawa Line is a Japanese railway line in Aichi Prefecture operated by Nagoya Railroad (Meitetsu), connecting several cities in the region including Toyota City.
 E525675 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: Meitetsu Mikawa Line | Statement: [Toyota City, railwayServedBy, Meitetsu Mikawa Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Meitetsu Mikawa Line
Context triple: [Toyota City, railwayServedBy, Meitetsu Mikawa Line]
  • A. Marunouchi Line
    The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
  • B. Karasuma Line
    The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
  • C. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
  • D. Imazatosuji Line
    The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
  • E. Fukutoshin Line
    The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
  • 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: Meitetsu Mikawa Line
Triple: [Toyota City, railwayServedBy, Meitetsu Mikawa Line]
Generated description
The Meitetsu Mikawa Line is a Japanese railway line in Aichi Prefecture operated by Nagoya Railroad (Meitetsu), connecting several cities in the region including Toyota City.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Meitetsu Mikawa Line
Target entity description: The Meitetsu Mikawa Line is a Japanese railway line in Aichi Prefecture operated by Nagoya Railroad (Meitetsu), connecting several cities in the region including Toyota City.
  • A. Marunouchi Line
    The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
  • B. Karasuma Line
    The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
  • C. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
  • D. Imazatosuji Line
    The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
  • E. Fukutoshin Line
    The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
  • 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_69ad8b24924c8190a9bb6f61d519e4ae completed March 8, 2026, 2:43 p.m.
NER Named-entity recognition batch_69ad9bad11b48190a5bd01e91a320e14 completed March 8, 2026, 3:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf95285fc08190b6dcae44270f486f completed March 22, 2026, 7:07 a.m.
NEDg Description generation batch_69bf958e448c81908613c521b3659e52 completed March 22, 2026, 7:09 a.m.
NED2 Entity disambiguation (via description) batch_69bf9749108c8190af59acd298365350 completed March 22, 2026, 7:16 a.m.
Created at: March 8, 2026, 3:01 p.m.