Triple
T3521139
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CTA Red Line |
E74423
|
entity |
| Predicate | terminusSouth |
P1866
|
FINISHED |
| Object | 95th/Dan Ryan station |
E89178
|
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: 95th/Dan Ryan station | Statement: [CTA Red Line, terminusSouth, 95th/Dan Ryan station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 95th/Dan Ryan station Context triple: [CTA Red Line, terminusSouth, 95th/Dan Ryan station]
-
A.
95th/Dan Ryan station
chosen
95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
-
B.
Quincy station (CTA)
Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange Line.
-
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.
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.
-
E.
Harlem (O'Hare branch) station
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
- 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_69ad85d0c5488190a3d8e02ebd01a1aa |
completed | March 8, 2026, 2:21 p.m. |
| NER | Named-entity recognition | batch_69adbc4c6ac8819096e9c773f3cccbfb |
completed | March 8, 2026, 6:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b37e87c7948190901d98f34e3987eb |
completed | March 13, 2026, 3:03 a.m. |
Created at: March 8, 2026, 3:19 p.m.