Triple

T626523
Position Surface form Disambiguated ID Type / Status
Subject Red Line (CTA) E15830 entity
Predicate hasTerminus P388 FINISHED
Object 95th/Dan Ryan station
95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
E89178 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: 95th/Dan Ryan station | Statement: [Red Line (CTA), hasTerminus, 95th/Dan Ryan station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 95th/Dan Ryan station
Context triple: [Red Line (CTA), hasTerminus, 95th/Dan Ryan station]
  • A. Lombard–South station
    Lombard–South station is an underground rapid transit stop on SEPTA’s Broad Street Line serving the South Philadelphia area of Philadelphia, Pennsylvania.
  • B. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • C. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • D. North Quincy station
    North Quincy station is a rapid transit stop on Boston's MBTA Red Line serving the North Quincy neighborhood in Quincy, Massachusetts.
  • E. CTA Red Line Sox–35th station
    CTA Red Line Sox–35th station is a Chicago Transit Authority rapid transit stop on the Red Line that serves the Bridgeport neighborhood and provides access to the Chicago White Sox’s home ballpark.
  • 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: 95th/Dan Ryan station
Triple: [Red Line (CTA), hasTerminus, 95th/Dan Ryan station]
Generated description
95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 95th/Dan Ryan station
Target entity description: 95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
  • A. Lombard–South station
    Lombard–South station is an underground rapid transit stop on SEPTA’s Broad Street Line serving the South Philadelphia area of Philadelphia, Pennsylvania.
  • B. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • C. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • D. North Quincy station
    North Quincy station is a rapid transit stop on Boston's MBTA Red Line serving the North Quincy neighborhood in Quincy, Massachusetts.
  • E. CTA Red Line Sox–35th station
    CTA Red Line Sox–35th station is a Chicago Transit Authority rapid transit stop on the Red Line that serves the Bridgeport neighborhood and provides access to the Chicago White Sox’s home ballpark.
  • 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_69a4935c131c8190a5378c6bf101e8cc completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a49e587c448190987943a6aad209d1 completed March 1, 2026, 8:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69a654d19b108190a4777dce9def7579 completed March 3, 2026, 3:26 a.m.
NEDg Description generation batch_69a658770f9881908ad4e5bec469cc4e completed March 3, 2026, 3:41 a.m.
NED2 Entity disambiguation (via description) batch_69a65904343481908b2075ccf67da7e8 completed March 3, 2026, 3:44 a.m.
Created at: March 1, 2026, 7:35 p.m.