Triple

T18215562
Position Surface form Disambiguated ID Type / Status
Subject Washington/Wabash E436144 entity
Predicate isWithinFareZone P844 FINISHED
Object CTA Zone A
CTA Zone A is a central fare zone in the Chicago Transit Authority system that covers core downtown stations like Washington/Wabash.
 E1312559 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: CTA Zone A | Statement: [Washington/Wabash, isWithinFareZone, CTA Zone A]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: CTA Zone A
Context triple: [Washington/Wabash, isWithinFareZone, CTA Zone A]
  • A. Metra zone E
    Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
  • B. Metra Zone B
    Metra Zone B is one of the inner fare zones in the Metra commuter rail system serving the Chicago metropolitan area, used to determine ticket prices for short-distance trips from downtown.
  • C. Metra zone D
    Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
  • D. CTA Orange Line
    The CTA Orange Line is a Chicago 'L' rapid transit route that runs between the Loop and Midway International Airport, serving the city's Southwest Side.
  • E. CTA Green Line
    The CTA Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides and serving the downtown Loop.
  • 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: CTA Zone A
Triple: [Washington/Wabash, isWithinFareZone, CTA Zone A]
Generated description
CTA Zone A is a central fare zone in the Chicago Transit Authority system that covers core downtown stations like Washington/Wabash.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: CTA Zone A
Target entity description: CTA Zone A is a central fare zone in the Chicago Transit Authority system that covers core downtown stations like Washington/Wabash.
  • A. Metra zone E
    Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
  • B. Metra Zone B
    Metra Zone B is one of the inner fare zones in the Metra commuter rail system serving the Chicago metropolitan area, used to determine ticket prices for short-distance trips from downtown.
  • C. Metra zone D
    Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
  • D. CTA Orange Line
    The CTA Orange Line is a Chicago 'L' rapid transit route that runs between the Loop and Midway International Airport, serving the city's Southwest Side.
  • E. CTA Green Line
    The CTA Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides and serving the downtown Loop.
  • 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_69d8b9103a8081908bbb0836fef10efd completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e4e476a6548190bda03190c5f531ad completed April 19, 2026, 2:19 p.m.
NED1 Entity disambiguation (via context triple) batch_6a039f17334c81909bc1d27bf1119502 completed May 12, 2026, 9:43 p.m.
NEDg Description generation batch_6a039fdd9c4c819083b450657d0ece43 completed May 12, 2026, 9:47 p.m.
NED2 Entity disambiguation (via description) batch_6a03a0d6de8c8190b1f94c7de0856143 completed May 12, 2026, 9:51 p.m.
Created at: April 10, 2026, 10:32 a.m.