Triple
T18651059
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago Avenue station (CTA Brown Line) |
E455935
|
entity |
| Predicate | railwaySystem |
P522
|
FINISHED |
| Object | Chicago 'L' Brown 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: Chicago 'L' Brown Line | Statement: [Chicago Avenue station (CTA Brown Line), railwaySystem, Chicago 'L' Brown Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago 'L' Brown Line Context triple: [Chicago Avenue station (CTA Brown Line), railwaySystem, Chicago 'L' Brown Line]
-
A.
Chicago "L" Green Line
The Chicago "L" Green Line is one of the city’s rapid transit routes, running primarily along the South and West Sides and serving key destinations including the Loop and the West Side’s Lake Street corridor.
-
B.
Red Line (Chicago "L")
The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.
-
C.
Brown Line
chosen
The Brown Line is a rapid transit route of Chicago's "L" system that primarily serves the city's North Side and northwest neighborhoods.
-
D.
Orange Line (CTA)
The Orange Line (CTA) is a rapid transit route in Chicago that connects the Loop with Midway International Airport and several Southwest Side neighborhoods.
-
E.
IND 63rd Street Line
The IND 63rd Street Line is a New York City Subway line in Manhattan and Queens that carries F and sometimes other services through the 63rd Street Tunnel.
- 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_69d8d38ea1e88190997e9b231190ba6f |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e55011a8208190acf5e6f69a441043 |
completed | April 19, 2026, 9:58 p.m. |
Created at: April 10, 2026, 11:47 a.m.