Triple

T437123
Position Surface form Disambiguated ID Type / Status
Subject Gary, Indiana E10032 entity
Predicate servedBy P82 FINISHED
Object South Shore Line
The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
 E56009 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: South Shore Line | Statement: [Gary, Indiana, servedBy, South Shore Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Shore Line
Context triple: [Gary, Indiana, servedBy, South Shore Line]
  • A. Metra
    Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
  • B. Orange Line
    The Orange Line is a rapid transit route in Chicago that connects the city's Loop with Midway International Airport as part of the Chicago "L" system.
  • C. Orange Line
    The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
  • D. Orange Line
    The Orange Line is a rapid transit route in the Boston metropolitan area that runs north–south through downtown as part of the MBTA subway system.
  • E. Metra Electric District line
    The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
  • 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: South Shore Line
Triple: [Gary, Indiana, servedBy, South Shore Line]
Generated description
The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Shore Line
Target entity description: The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
  • A. Metra
    Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
  • B. Orange Line
    The Orange Line is a rapid transit route in Chicago that connects the city's Loop with Midway International Airport as part of the Chicago "L" system.
  • C. Orange Line
    The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
  • D. Orange Line
    The Orange Line is a rapid transit route in the Boston metropolitan area that runs north–south through downtown as part of the MBTA subway system.
  • E. Metra Electric District line
    The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
  • 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_69a2e8465ef481909655c681b01e2986 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2ef26bb78819089b3b5dac0330619 completed Feb. 28, 2026, 1:35 p.m.
NED1 Entity disambiguation (via context triple) batch_69a442a01ebc8190bc4810df7c358932 completed March 1, 2026, 1:44 p.m.
NEDg Description generation batch_69a4430b95048190bde4ff5118bda91f completed March 1, 2026, 1:45 p.m.
NED2 Entity disambiguation (via description) batch_69a4433c43388190a634c2a630bde2e6 completed March 1, 2026, 1:46 p.m.
Created at: Feb. 28, 2026, 1:11 p.m.