Triple

T797698
Position Surface form Disambiguated ID Type / Status
Subject Green Line (CTA) E17058 entity
Predicate servesStation P839 FINISHED
Object Ashland station (Green Line)
Ashland station (Green Line) is an elevated Chicago 'L' rapid transit station on the Chicago Transit Authority’s Green Line.
 E105306 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: Ashland station (Green Line) | Statement: [Green Line (CTA), servesStation, Ashland station (Green Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ashland station (Green Line)
Context triple: [Green Line (CTA), servesStation, Ashland station (Green Line)]
  • A. Pulaski station (Green Line)
    Pulaski station (Green Line) is an elevated Chicago 'L' rapid transit station on the CTA's Green Line located in the city's West Garfield Park neighborhood.
  • B. Kedzie station (Green Line)
    Kedzie station (Green Line) is an elevated Chicago 'L' rapid transit station located in the East Garfield Park neighborhood on the city's West Side.
  • C. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • D. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • E. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and neighborhoods.
  • 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: Ashland station (Green Line)
Triple: [Green Line (CTA), servesStation, Ashland station (Green Line)]
Generated description
Ashland station (Green Line) is an elevated Chicago 'L' rapid transit station on the Chicago Transit Authority’s Green Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Ashland station (Green Line)
Target entity description: Ashland station (Green Line) is an elevated Chicago 'L' rapid transit station on the Chicago Transit Authority’s Green Line.
  • A. Pulaski station (Green Line)
    Pulaski station (Green Line) is an elevated Chicago 'L' rapid transit station on the CTA's Green Line located in the city's West Garfield Park neighborhood.
  • B. Kedzie station (Green Line)
    Kedzie station (Green Line) is an elevated Chicago 'L' rapid transit station located in the East Garfield Park neighborhood on the city's West Side.
  • C. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • D. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • E. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and neighborhoods.
  • 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_69a49378b9c48190adbf5f62e5b7aca1 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4a7b342888190a344fe81a2c9f33c completed March 1, 2026, 8:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69a7c00c1db48190906a02bb80fe98dc completed March 4, 2026, 5:15 a.m.
NEDg Description generation batch_69a7c13f15848190b126bdc434953a22 completed March 4, 2026, 5:21 a.m.
NED2 Entity disambiguation (via description) batch_69a7c21dd42881908ac19fed7454d7a9 completed March 4, 2026, 5:24 a.m.
Created at: March 1, 2026, 7:38 p.m.