Triple

T13562643
Position Surface form Disambiguated ID Type / Status
Subject Jackson (CTA Red Line station) E323946 entity
Predicate connectsSouthTo P110372 FINISHED
Object Harrison (CTA Red Line station)
Harrison is a Chicago Transit Authority Red Line subway station located in downtown Chicago near the South Loop and several major educational institutions.
E1050470 NE FINISHED

How this triple was built (5 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: Harrison (CTA Red Line station) | Statement: [Jackson (CTA Red Line station), connectsSouthTo, Harrison (CTA Red Line station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Harrison (CTA Red Line station)
Context triple: [Jackson (CTA Red Line station), connectsSouthTo, Harrison (CTA Red Line station)]
  • A. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • B. Jackson (CTA Red Line station)
    Jackson is a major Chicago Transit Authority Red Line subway station located in downtown Chicago’s Loop, serving as a key transfer point within the city’s rapid transit system.
  • C. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • D. 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.
  • E. Jarvis station (CTA Red Line)
    Jarvis station (CTA Red Line) is an elevated rapid transit stop on Chicago’s Red Line serving the Rogers Park neighborhood near the city’s northern lakefront.
  • 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: Harrison (CTA Red Line station)
Triple: [Jackson (CTA Red Line station), connectsSouthTo, Harrison (CTA Red Line station)]
Generated description
Harrison is a Chicago Transit Authority Red Line subway station located in downtown Chicago near the South Loop and several major educational institutions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Harrison (CTA Red Line station)
Target entity description: Harrison is a Chicago Transit Authority Red Line subway station located in downtown Chicago near the South Loop and several major educational institutions.
  • A. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • B. Jackson (CTA Red Line station)
    Jackson is a major Chicago Transit Authority Red Line subway station located in downtown Chicago’s Loop, serving as a key transfer point within the city’s rapid transit system.
  • C. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • D. 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.
  • E. Jarvis station (CTA Red Line)
    Jarvis station (CTA Red Line) is an elevated rapid transit stop on Chicago’s Red Line serving the Rogers Park neighborhood near the city’s northern lakefront.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: connectsSouthTo
Context triple: [Jackson (CTA Red Line station), connectsSouthTo, Harrison (CTA Red Line station)]
  • A. southernConnection
    Indicates a relationship where one entity is connected to, associated with, or accessed via the southern part or side of another entity.
  • B. hasSouthernTerminus
    Indicates that one entity serves as the southern endpoint or terminus of another entity, such as a route, line, or path.
  • C. connectsCityTo
    Indicates a relationship in which a route, infrastructure, or link joins one city to another, enabling connection or interaction between them.
  • D. terminusSouthConnection
    Indicates a connection where one entity serves as the southern terminus or endpoint of another entity.
  • E. connectsDowntownTo
    Indicates a relationship where one location, route, or service provides a direct connection or access to a downtown area.
  • F. None of above. chosen

Provenance (7 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_69d8076830b48190910a902bae5888e2 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69dbbb9ee3f081909056dc1a92c40b7a completed April 12, 2026, 3:34 p.m.
NED1 Entity disambiguation (via context triple) batch_69f77f8967288190b822ed1e115f85b2 completed May 3, 2026, 5:02 p.m.
NEDg Description generation batch_69f78125632881908d601ee4c4aaae35 completed May 3, 2026, 5:08 p.m.
NED2 Entity disambiguation (via description) batch_69f781e32cb48190abc83e65405ac8ac completed May 3, 2026, 5:12 p.m.
PD Predicate disambiguation batch_69dbae13bec4819084c1770638c00ed9 completed April 12, 2026, 2:37 p.m.
PDg Predicate description generation batch_69dbbb8c77dc8190b7bd803b5e168d23 completed April 12, 2026, 3:34 p.m.
Created at: April 9, 2026, 9:47 p.m.