Triple
T19270621
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Midway Airport branch of Orange Line |
E481912
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Halsted station (CTA Orange Line) |
—
|
NE NERFINISHED |
How this triple was built (2 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 (CTA Orange Line) | Statement: [Midway Airport branch of Orange Line, hasStation, Halsted station (CTA Orange Line)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Halsted station (CTA Orange Line) Context triple: [Midway Airport branch of Orange Line, hasStation, Halsted station (CTA Orange Line)]
-
A.
Halsted station (CTA Orange Line)
chosen
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.
-
B.
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.
-
C.
Pulaski station (CTA Orange Line)
Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
-
D.
Howard station (CTA Red Line)
Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
-
E.
Argyle station (CTA)
Argyle station (CTA) is an elevated Chicago 'L' rapid transit stop on the Red Line serving the Uptown neighborhood’s Argyle Street area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8e8ce54cc8190998418ff1f66ef28 |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fbb74ec48190a58d96b4b5b9af00 |
completed | April 20, 2026, 10:11 a.m. |
Created at: April 10, 2026, 1:29 p.m.