Triple

T10801959
Position Surface form Disambiguated ID Type / Status
Subject Joliet Station E254858 entity
Predicate connectsTo P845 FINISHED
Object LaSalle Street Station, Chicago (via Rock Island District)
LaSalle Street Station in Chicago is a historic downtown commuter rail terminal that serves as the northern terminus for Metra’s Rock Island District line.
 E886522 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: LaSalle Street Station, Chicago (via Rock Island District) | Statement: [Joliet Station, connectsTo, LaSalle Street Station, Chicago (via Rock Island District)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: LaSalle Street Station, Chicago (via Rock Island District)
Context triple: [Joliet Station, connectsTo, LaSalle Street Station, Chicago (via Rock Island District)]
  • A. Washington/Wabash station (CTA)
    Washington/Wabash station (CTA) is an elevated Chicago 'L' station in the Loop serving the Brown, Green, Orange, Pink, and Purple Lines.
  • B. LaSalle station (Chicago Transit Authority Blue Line)
    LaSalle station is an underground Chicago 'L' rapid transit stop on the Blue Line serving the Loop area and connecting to nearby commuter rail services.
  • C. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
  • D. Lawrence station (Chicago "L")
    Lawrence station is a Chicago "L" rapid transit stop located in the Uptown neighborhood on the Red Line.
  • E. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • 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: LaSalle Street Station, Chicago (via Rock Island District)
Triple: [Joliet Station, connectsTo, LaSalle Street Station, Chicago (via Rock Island District)]
Generated description
LaSalle Street Station in Chicago is a historic downtown commuter rail terminal that serves as the northern terminus for Metra’s Rock Island District line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: LaSalle Street Station, Chicago (via Rock Island District)
Target entity description: LaSalle Street Station in Chicago is a historic downtown commuter rail terminal that serves as the northern terminus for Metra’s Rock Island District line.
  • A. Washington/Wabash station (CTA)
    Washington/Wabash station (CTA) is an elevated Chicago 'L' station in the Loop serving the Brown, Green, Orange, Pink, and Purple Lines.
  • B. LaSalle station (Chicago Transit Authority Blue Line)
    LaSalle station is an underground Chicago 'L' rapid transit stop on the Blue Line serving the Loop area and connecting to nearby commuter rail services.
  • C. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
  • D. Lawrence station (Chicago "L")
    Lawrence station is a Chicago "L" rapid transit stop located in the Uptown neighborhood on the Red Line.
  • E. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • 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_69d6aa61c15c8190a1839550c56e75e1 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d7336dedec819099bd302c5d213dba completed April 9, 2026, 5:04 a.m.
NED1 Entity disambiguation (via context triple) batch_69de566e7d408190946864e28c294075 completed April 14, 2026, 2:59 p.m.
NEDg Description generation batch_69de5eaf3cc08190935cb6ddf2020166 completed April 14, 2026, 3:35 p.m.
NED2 Entity disambiguation (via description) batch_69de63a902f4819089845bc6d7469c6b completed April 14, 2026, 3:56 p.m.
Created at: April 8, 2026, 9:18 p.m.