Triple

T13441361
Position Surface form Disambiguated ID Type / Status
Subject State Street Subway E320367 entity
Predicate connectsTo P845 FINISHED
Object Dan Ryan branch of Red Line
The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
E1040964 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: Dan Ryan branch of Red Line | Statement: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Dan Ryan branch of Red Line
Context triple: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
  • A. 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.
  • B. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • C. 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.
  • D. Green Line Union Square branch
    The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
  • E. North Side Main Line (CTA Red Line)
    The North Side Main Line is a major elevated rapid transit corridor in Chicago that carries the Chicago Transit Authority's Red Line trains through the city's North Side 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: Dan Ryan branch of Red Line
Triple: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
Generated description
The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Dan Ryan branch of Red Line
Target entity description: The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
  • A. 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.
  • B. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • C. 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.
  • D. Green Line Union Square branch
    The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
  • E. North Side Main Line (CTA Red Line)
    The North Side Main Line is a major elevated rapid transit corridor in Chicago that carries the Chicago Transit Authority's Red Line trains through the city's North Side 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_69d80761e6cc8190a90c844589998ecc completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69dbaee704ac8190b4c7f4e0d3a88494 completed April 12, 2026, 2:40 p.m.
NED1 Entity disambiguation (via context triple) batch_69f7399421908190a7750e37c89a73f6 completed May 3, 2026, 12:03 p.m.
NEDg Description generation batch_69f73b5f6d60819099f405d5d97e68e9 completed May 3, 2026, 12:11 p.m.
NED2 Entity disambiguation (via description) batch_69f73f549af081908ed018a18b3f31f7 completed May 3, 2026, 12:28 p.m.
Created at: April 9, 2026, 9:40 p.m.