Triple
T4222521
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SouthWest Service line |
E94374
|
entity |
| Predicate | owner |
P347
|
FINISHED |
| Object | Regional Transportation Authority of Northeastern Illinois |
E3739
|
NE FINISHED |
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: Regional Transportation Authority of Northeastern Illinois | Statement: [SouthWest Service line, owner, Regional Transportation Authority of Northeastern Illinois]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Regional Transportation Authority of Northeastern Illinois Context triple: [SouthWest Service line, owner, Regional Transportation Authority of Northeastern Illinois]
-
A.
Regional Transportation Authority of Northeastern Illinois
chosen
The Regional Transportation Authority of Northeastern Illinois is the oversight and funding agency that coordinates public transit services, including those of the Chicago Transit Authority, across the Chicago metropolitan area.
-
B.
Sangamon Mass Transit District
Sangamon Mass Transit District is the primary public bus transportation agency serving Springfield and surrounding areas in Sangamon County, Illinois.
-
C.
Champaign–Urbana Mass Transit District
The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
-
D.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
E.
Jackson Area Transportation Authority
Jackson Area Transportation Authority is the public transit agency that operates bus and related transportation services in and around Jackson, Michigan.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69b3451997e08190851db4a9a588837d |
completed | March 12, 2026, 10:58 p.m. |
| NER | Named-entity recognition | batch_69b34e0f4f18819089779c37c626762e |
completed | March 12, 2026, 11:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b59642720c81908e68a56b3d30eef9 |
completed | March 14, 2026, 5:09 p.m. |
Created at: March 12, 2026, 11:04 p.m.