Triple
T15555876
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Orange Line at Clark/Lake |
E370865
|
entity |
| Predicate | ownership |
P347
|
FINISHED |
| Object | City of Chicago (transit infrastructure) |
E1040962
|
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: City of Chicago (transit infrastructure) | Statement: [Orange Line at Clark/Lake, ownership, City of Chicago (transit infrastructure)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: City of Chicago (transit infrastructure) Context triple: [Orange Line at Clark/Lake, ownership, City of Chicago (transit infrastructure)]
-
A.
City of Chicago Department of Subways and Superhighways
chosen
The City of Chicago Department of Subways and Superhighways was a municipal agency responsible for planning, constructing, and overseeing major subway and expressway infrastructure in Chicago.
-
B.
Chicago Transit Authority ‘L’ stations
Chicago Transit Authority ‘L’ stations are elevated and subway rapid transit stops throughout Chicago that serve as key nodes in the city’s public transportation network.
-
C.
South Chicago Branch of Metra Electric District
The South Chicago Branch of Metra Electric District is a commuter rail line on Chicago’s South Side that provides electric train service between downtown Chicago and the South Chicago neighborhood.
-
D.
Chicago "L"
The Chicago "L" is the elevated rapid transit system serving Chicago and some surrounding suburbs, known for its iconic above-ground tracks and extensive urban rail network.
-
E.
Chicago (Blue Line station)
Chicago (Blue Line station) is an underground rapid transit stop on the Chicago Transit Authority’s Blue Line serving the city’s Near West 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_69d85cc6cf40819091f4a5facee1ebe6 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04a97dbfc8190a98cbbac5e71ba88 |
completed | April 16, 2026, 2:34 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff456427988190bddea01f5cb159d9 |
completed | May 9, 2026, 2:32 p.m. |
Created at: April 10, 2026, 4:09 a.m.