Triple

T4438964
Position Surface form Disambiguated ID Type / Status
Subject Indiana station E95721 entity
Predicate servedBy P82 FINISHED
Object Green Line South Side Main Line
The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
 E488863 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: Green Line South Side Main Line | Statement: [Indiana station, servedBy, Green Line South Side Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Green Line South Side Main Line
Context triple: [Indiana station, servedBy, Green Line South Side Main Line]
  • A. Green Line West Branch
    The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
  • B. Green Line C Branch
    The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
  • C. Green Line B branch
    The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
  • D. Green Line
    The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
  • E. Green Line
    The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
  • 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: Green Line South Side Main Line
Triple: [Indiana station, servedBy, Green Line South Side Main Line]
Generated description
The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Green Line South Side Main Line
Target entity description: The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
  • A. Green Line West Branch
    The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
  • B. Green Line C Branch
    The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
  • C. Green Line B branch
    The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
  • D. Green Line
    The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
  • E. Green Line
    The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
  • 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_69b3453ea2b48190a26f154b3b8fece5 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b355aaa9288190b95d875d343d6ee5 completed March 13, 2026, 12:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69be9c31748c81909477e01261b5a78a completed March 21, 2026, 1:25 p.m.
NEDg Description generation batch_69be9e3cfa8081909378c552be3ecb41 completed March 21, 2026, 1:33 p.m.
NED2 Entity disambiguation (via description) batch_69be9e902e3881909f2662cf8f086cd9 completed March 21, 2026, 1:35 p.m.
Created at: March 12, 2026, 11:31 p.m.