Triple
T15362691
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | UIC–Halsted |
E367327
|
entity |
| Predicate | replaced |
P101
|
FINISHED |
| Object |
Halsted station (Metropolitan West Side Elevated)
Halsted station (Metropolitan West Side Elevated) was a former Chicago 'L' rapid transit station on the Metropolitan West Side Elevated line that once served the Near West Side before its closure and replacement by UIC–Halsted.
|
E97016
|
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: Halsted station (Metropolitan West Side Elevated) | Statement: [UIC–Halsted, replaced, Halsted station (Metropolitan West Side Elevated)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Halsted station (Metropolitan West Side Elevated) Context triple: [UIC–Halsted, replaced, Halsted station (Metropolitan West Side Elevated)]
-
A.
Halsted (Green Line) station
Halsted (Green Line) station is an elevated Chicago 'L' rapid transit stop on the Green Line located in the Englewood neighborhood on Chicago’s South Side.
-
B.
Halsted station (CTA Orange Line)
Halsted station (CTA Orange Line) is a rapid transit stop on Chicago’s Orange Line serving the city’s Southwest Side near the Bridgeport and McKinley Park neighborhoods.
-
C.
UIC–Halsted station
UIC–Halsted station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the University of Illinois at Chicago campus and the Near West Side neighborhood.
-
D.
Halsted/63rd station
Halsted/63rd station is an elevated Chicago 'L' rapid transit stop in the Englewood neighborhood on the Chicago Transit Authority's Green Line.
-
E.
Berwyn station (Chicago "L")
Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
- 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: Halsted station (Metropolitan West Side Elevated) Triple: [UIC–Halsted, replaced, Halsted station (Metropolitan West Side Elevated)]
Generated description
Halsted station (Metropolitan West Side Elevated) was a former Chicago 'L' rapid transit station on the Metropolitan West Side Elevated line that once served the Near West Side before its closure and replacement by UIC–Halsted.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Halsted station (Metropolitan West Side Elevated) Target entity description: Halsted station (Metropolitan West Side Elevated) was a former Chicago 'L' rapid transit station on the Metropolitan West Side Elevated line that once served the Near West Side before its closure and replacement by UIC–Halsted.
-
A.
Halsted (Green Line) station
Halsted (Green Line) station is an elevated Chicago 'L' rapid transit stop on the Green Line located in the Englewood neighborhood on Chicago’s South Side.
-
B.
Halsted station (CTA Orange Line)
Halsted station (CTA Orange Line) is a rapid transit stop on Chicago’s Orange Line serving the city’s Southwest Side near the Bridgeport and McKinley Park neighborhoods.
-
C.
UIC–Halsted station
chosen
UIC–Halsted station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the University of Illinois at Chicago campus and the Near West Side neighborhood.
-
D.
Halsted/63rd station
Halsted/63rd station is an elevated Chicago 'L' rapid transit stop in the Englewood neighborhood on the Chicago Transit Authority's Green Line.
-
E.
Berwyn station (Chicago "L")
Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
- F. None of above.
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_69d85a1483788190ad93c2748e8af34b |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e03e479f188190bbbc3dcd73853e02 |
completed | April 16, 2026, 1:41 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff0b4a181c8190bffc1ac1a86e215d |
completed | May 9, 2026, 10:24 a.m. |
| NEDg | Description generation | batch_69ff0f82441c81909a8ae13817fd3e96 |
completed | May 9, 2026, 10:42 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff0fd586708190a54b33efd27d84b2 |
completed | May 9, 2026, 10:43 a.m. |
Created at: April 10, 2026, 3:18 a.m.