Triple

T3597649
Position Surface form Disambiguated ID Type / Status
Subject CTA Pink Line E76177 entity
Predicate usesLoopTrack P48776 FINISHED
Object Inner Loop
Inner Loop is the clockwise-traveling elevated rail circuit in downtown Chicago’s Loop that serves multiple Chicago Transit Authority train lines.
E372116 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: Inner Loop | Statement: [CTA Pink Line, usesLoopTrack, Inner Loop]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Inner Loop
Context triple: [CTA Pink Line, usesLoopTrack, Inner Loop]
  • A. Inner Loop
    Inner Loop is a downtown Miami Metromover route that circulates through the city’s central business district on an automated people mover system.
  • B. Inner Loop
    Inner Loop is the clockwise-traveling set of lanes on the Capital Beltway (Interstate 495) encircling the Washington, D.C. metropolitan area.
  • C. Outer Loop
    Outer Loop is the counterclockwise carriageway of the Capital Beltway (Interstate 495) encircling the Washington, D.C. metropolitan area.
  • D. B Loop
    B Loop is one of the main routes of the Portland Streetcar system, providing modern streetcar service through key neighborhoods in Portland, Oregon.
  • E. A Loop
    A Loop is a modern streetcar route in Portland, Oregon, that provides circulator service through the central city and adjacent neighborhoods as part of the Portland Streetcar system.
  • 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: Inner Loop
Triple: [CTA Pink Line, usesLoopTrack, Inner Loop]
Generated description
Inner Loop is the clockwise-traveling elevated rail circuit in downtown Chicago’s Loop that serves multiple Chicago Transit Authority train lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Inner Loop
Target entity description: Inner Loop is the clockwise-traveling elevated rail circuit in downtown Chicago’s Loop that serves multiple Chicago Transit Authority train lines.
  • A. Inner Loop
    Inner Loop is the clockwise-traveling set of lanes on the Capital Beltway (Interstate 495) encircling the Washington, D.C. metropolitan area.
  • B. Inner Loop
    Inner Loop is a downtown Miami Metromover route that circulates through the city’s central business district on an automated people mover system.
  • C. Outer Loop
    Outer Loop is the counterclockwise carriageway of the Capital Beltway (Interstate 495) encircling the Washington, D.C. metropolitan area.
  • D. B Loop
    B Loop is one of the main routes of the Portland Streetcar system, providing modern streetcar service through key neighborhoods in Portland, Oregon.
  • E. A Loop
    A Loop is a modern streetcar route in Portland, Oregon, that provides circulator service through the central city and adjacent neighborhoods as part of the Portland Streetcar system.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: usesLoopTrack
Context triple: [CTA Pink Line, usesLoopTrack, Inner Loop]
  • A. isLoop
    Indicates that something forms or behaves as a closed, repeating cycle or path that returns to its starting point.
  • B. hasBusLoop chosen
    Indicates that a location or facility includes a designated looped roadway or area specifically for bus circulation, stopping, or turning.
  • C. hasTrack
    Indicates that one entity possesses, includes, or is associated with a specific track (such as a path, course, or recorded item).
  • D. usesRepetition
    Indicates that one entity employs repeated elements, actions, or patterns as a deliberate feature or technique in relation to another entity or context.
  • E. usesTrackage
    Indicates that one transportation operator or service runs its vehicles over railway or transit tracks that are owned or controlled by another entity.
  • F. None of above.

Provenance (6 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_69ad85d8042081908af94a04c410dec0 completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc19c71608190a87c98214321214c completed March 8, 2026, 6:36 p.m.
NED1 Entity disambiguation (via context triple) batch_69b40316ebdc819088eb21b7087fb7e7 completed March 13, 2026, 12:29 p.m.
NEDg Description generation batch_69b406f095488190b4543fa8008fe86c completed March 13, 2026, 12:45 p.m.
NED2 Entity disambiguation (via description) batch_69b408744dcc819081308b7182a40c88 completed March 13, 2026, 12:52 p.m.
PD Predicate disambiguation batch_69adb83b66708190bb9d2f23d6fd308e completed March 8, 2026, 5:56 p.m.
Created at: March 8, 2026, 3:22 p.m.