Triple

T8765318
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line tunnels E208324 entity
Predicate includesSection P1393 FINISHED
Object Kenmore subway
Kenmore subway is the underground segment of Boston’s MBTA Green Line that serves the busy Kenmore Square area near Fenway Park and Boston University.
E757259 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: Kenmore subway | Statement: [MBTA Green Line tunnels, includesSection, Kenmore subway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Kenmore subway
Context triple: [MBTA Green Line tunnels, includesSection, Kenmore subway]
  • A. Länsimetro
    Länsimetro is a major westward extension of the Helsinki Metro that connects central Helsinki with the neighboring city of Espoo through a series of new underground stations.
  • B. Sheppard subway
    Sheppard subway is a Toronto Transit Commission rapid transit line in North York that runs east–west along Sheppard Avenue.
  • C. Eidan Subway
    Eidan Subway was the former name of Tokyo’s main rapid transit system, operated by the Teito Rapid Transit Authority before it became Tokyo Metro.
  • D. Roosevelt Island Tramway
    The Roosevelt Island Tramway is an aerial cable car system in New York City that connects Roosevelt Island to Manhattan, offering both public transit and scenic views of the skyline.
  • E. Archer Avenue Subway
    The Archer Avenue Subway is a New York City Subway extension in Queens that opened in the late 1980s to replace portions of the demolished elevated Jamaica Line and improve transit access to the Jamaica Center area.
  • 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: Kenmore subway
Triple: [MBTA Green Line tunnels, includesSection, Kenmore subway]
Generated description
Kenmore subway is the underground segment of Boston’s MBTA Green Line that serves the busy Kenmore Square area near Fenway Park and Boston University.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Kenmore subway
Target entity description: Kenmore subway is the underground segment of Boston’s MBTA Green Line that serves the busy Kenmore Square area near Fenway Park and Boston University.
  • A. Länsimetro
    Länsimetro is a major westward extension of the Helsinki Metro that connects central Helsinki with the neighboring city of Espoo through a series of new underground stations.
  • B. Sheppard subway
    Sheppard subway is a Toronto Transit Commission rapid transit line in North York that runs east–west along Sheppard Avenue.
  • C. Eidan Subway
    Eidan Subway was the former name of Tokyo’s main rapid transit system, operated by the Teito Rapid Transit Authority before it became Tokyo Metro.
  • D. Roosevelt Island Tramway
    The Roosevelt Island Tramway is an aerial cable car system in New York City that connects Roosevelt Island to Manhattan, offering both public transit and scenic views of the skyline.
  • E. Archer Avenue Subway
    The Archer Avenue Subway is a New York City Subway extension in Queens that opened in the late 1980s to replace portions of the demolished elevated Jamaica Line and improve transit access to the Jamaica Center area.
  • 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_69ca835df7e08190ac875664cca8f9ca completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc5ee850b88190a0294bcbe4045aa3 completed March 31, 2026, 11:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69cf519f029081908ad0ae79f35b3e9d completed April 3, 2026, 5:35 a.m.
NEDg Description generation batch_69cf560021148190b60f3f32b0a952b4 completed April 3, 2026, 5:54 a.m.
NED2 Entity disambiguation (via description) batch_69cf5654aa4c8190a368a0caca8ed45b completed April 3, 2026, 5:55 a.m.
Created at: March 30, 2026, 6:40 p.m.