Triple

T851240
Position Surface form Disambiguated ID Type / Status
Subject Pink Line E18388 entity
Predicate maintenanceYard P18851 FINISHED
Object 54th Yard
54th Yard is a maintenance and storage facility serving trains on Chicago's Pink Line rapid transit route.
E99431 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: 54th Yard | Statement: [Pink Line, maintenanceYard, 54th Yard]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 54th Yard
Context triple: [Pink Line, maintenanceYard, 54th Yard]
  • A. Bailey Yard
    Bailey Yard is the world’s largest railroad classification yard, located in North Platte, Nebraska, and serving as a major hub for freight train operations in the United States.
  • B. Goodale Park
    Goodale Park is a historic urban green space and one of the oldest public parks in Columbus, Ohio, known for its scenic pond, walking paths, and community events.
  • C. SHI Stadium
    SHI Stadium is a college football stadium that serves as the home field for the Rutgers University Scarlet Knights.
  • D. Sherri Parker Lee Stadium
    Sherri Parker Lee Stadium is a collegiate softball venue in Knoxville, Tennessee, serving as the home field for the University of Tennessee Lady Volunteers softball team.
  • E. Soundview Park
    Soundview Park is a large waterfront public park in the Bronx, New York City, known for its athletic fields, walking paths, and restored natural wetlands along the Bronx River and East River.
  • 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: 54th Yard
Triple: [Pink Line, maintenanceYard, 54th Yard]
Generated description
54th Yard is a maintenance and storage facility serving trains on Chicago's Pink Line rapid transit route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 54th Yard
Target entity description: 54th Yard is a maintenance and storage facility serving trains on Chicago's Pink Line rapid transit route.
  • A. Bailey Yard
    Bailey Yard is the world’s largest railroad classification yard, located in North Platte, Nebraska, and serving as a major hub for freight train operations in the United States.
  • B. Goodale Park
    Goodale Park is a historic urban green space and one of the oldest public parks in Columbus, Ohio, known for its scenic pond, walking paths, and community events.
  • C. SHI Stadium
    SHI Stadium is a college football stadium that serves as the home field for the Rutgers University Scarlet Knights.
  • D. Sherri Parker Lee Stadium
    Sherri Parker Lee Stadium is a collegiate softball venue in Knoxville, Tennessee, serving as the home field for the University of Tennessee Lady Volunteers softball team.
  • E. Soundview Park
    Soundview Park is a large waterfront public park in the Bronx, New York City, known for its athletic fields, walking paths, and restored natural wetlands along the Bronx River and East River.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: maintenanceYard
Context triple: [Pink Line, maintenanceYard, 54th Yard]
  • A. maintenance
    Indicates that an entity performs, requires, or is involved in upkeep, repair, or preservation activities for another entity or system.
  • B. depot
    Indicates that an entity serves as a storage or distribution center location for another entity, such as goods, vehicles, or resources.
  • C. hasRailYard chosen
    Indicates that one entity possesses, contains, or includes a rail yard as part of its facilities or infrastructure.
  • D. hasBodyShop
    Indicates that one entity operates, owns, or is associated with an auto body repair shop.
  • E. inService
    Indicates that an entity is currently active, operational, or available for use in its intended role or function.
  • 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_69a4938b04208190b82e1df6b572c548 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4ac22de288190913714d41e5a8e12 completed March 1, 2026, 9:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69a792a0666c8190bfc9166d45b4e867 completed March 4, 2026, 2:02 a.m.
NEDg Description generation batch_69a793563cc881909381f898f240c0bd completed March 4, 2026, 2:05 a.m.
NED2 Entity disambiguation (via description) batch_69a7941add588190913198a7f7b20943 completed March 4, 2026, 2:08 a.m.
PD Predicate disambiguation batch_69a4aa81ef348190b067f817574e9efe completed March 1, 2026, 9:07 p.m.
Created at: March 1, 2026, 7:38 p.m.