Triple
T3543574
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CTA Blue Line |
E74942
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Western (O'Hare branch)
Western (O'Hare branch) is a Chicago 'L' rapid transit station on the Blue Line serving the city's O'Hare branch.
|
E367321
|
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: Western (O'Hare branch) | Statement: [CTA Blue Line, hasStation, Western (O'Hare branch)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Western (O'Hare branch) Context triple: [CTA Blue Line, hasStation, Western (O'Hare branch)]
-
A.
Westmont station
Westmont station is a commuter rail stop in Westmont, Illinois, serving Metra’s BNSF Railway Line between Chicago and its western suburbs.
-
B.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
C.
Berwyn station
Berwyn station is a commuter rail stop in Berwyn, Illinois, served by Metra trains on the BNSF Railway Line connecting the suburb to downtown Chicago.
-
D.
Park West station
Park West station is a Metromover rapid transit station in downtown Miami, Florida, serving the Park West neighborhood and nearby venues such as the Kaseya Center.
-
E.
Glenview station
Glenview station is a commuter rail station in Glenview, Illinois, serving as a stop for Metra and Amtrak trains in the Chicago metropolitan area.
- 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: Western (O'Hare branch) Triple: [CTA Blue Line, hasStation, Western (O'Hare branch)]
Generated description
Western (O'Hare branch) is a Chicago 'L' rapid transit station on the Blue Line serving the city's O'Hare branch.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Western (O'Hare branch) Target entity description: Western (O'Hare branch) is a Chicago 'L' rapid transit station on the Blue Line serving the city's O'Hare branch.
-
A.
Westmont station
Westmont station is a commuter rail stop in Westmont, Illinois, serving Metra’s BNSF Railway Line between Chicago and its western suburbs.
-
B.
Western (Brown Line)
Western (Brown Line) is a Chicago 'L' rapid transit station on the Brown Line located in the Lincoln Square neighborhood.
-
C.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
D.
Berwyn station
Berwyn station is a commuter rail stop in Berwyn, Illinois, served by Metra trains on the BNSF Railway Line connecting the suburb to downtown Chicago.
-
E.
Park West station
Park West station is a Metromover rapid transit station in downtown Miami, Florida, serving the Park West neighborhood and nearby venues such as the Kaseya Center.
- 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_69ad85d274cc8190ab59c97298a1cfbf |
completed | March 8, 2026, 2:21 p.m. |
| NER | Named-entity recognition | batch_69adbf752dd481909226044ffe595338 |
completed | March 8, 2026, 6:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b38bdd0cb4819086119b54c2708850 |
completed | March 13, 2026, 4 a.m. |
| NEDg | Description generation | batch_69b38cb6a2188190b68f4903144a0e51 |
completed | March 13, 2026, 4:04 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b39062a10c8190bc227c02cf4f3ab1 |
completed | March 13, 2026, 4:19 a.m. |
Created at: March 8, 2026, 3:20 p.m.