Triple
T11021387
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago/Franklin station (Chicago "L") |
E260496
|
entity |
| Predicate | line |
P1293
|
FINISHED |
| Object | North Side main line |
E104833
|
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: North Side main line | Statement: [Chicago/Franklin station (Chicago "L"), line, North Side main line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Side main line Context triple: [Chicago/Franklin station (Chicago "L"), line, North Side main line]
-
A.
North Side Main Line
chosen
The North Side Main Line was a historic elevated rapid transit route in Chicago that formed a key part of the early "L" system and later evolved into segments of today’s Red Line.
-
B.
South Side Elevated branch
The South Side Elevated branch is a historic segment of Chicago's rapid transit system that serves the city's South Side as part of the Chicago "L" network.
-
C.
South Side Main Line
The South Side Main Line is a key elevated rapid transit corridor on Chicago's 'L' system that carries multiple Green Line services through the city's South Side.
-
D.
Red Line northwest branch
The Red Line northwest branch is a planned rapid transit extension serving the northwestern suburbs as part of the Red Line’s expanded corridor.
-
E.
Ravenswood Line
The Ravenswood Line is the historical name for what is now known as the Chicago Transit Authority's Brown Line, an elevated rapid transit route serving Chicago's North Side.
- 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_69d6aa9687448190b28d353b1b6a610e |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d797bb6eec81909d8004af31f307f7 |
completed | April 9, 2026, 12:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e374f64b3c8190b0b55193f81d3bc5 |
completed | April 18, 2026, 12:11 p.m. |
Created at: April 8, 2026, 9:25 p.m.