Triple
T4940839
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North Side of Chicago |
E110927
|
entity |
| Predicate | traversedBy |
P225
|
FINISHED |
| Object | Chicago Transit Authority Purple Line |
E382139
|
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: Chicago Transit Authority Purple Line | Statement: [North Side of Chicago, traversedBy, Chicago Transit Authority Purple Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago Transit Authority Purple Line Context triple: [North Side of Chicago, traversedBy, Chicago Transit Authority Purple Line]
-
A.
Chicago Transit Authority Purple Line stations
Chicago Transit Authority Purple Line stations are the rapid transit stops in the Chicago 'L' system served by the Purple Line, which runs between the northern suburbs and downtown Chicago.
-
B.
CTA Purple Line
chosen
The CTA Purple Line is a rapid transit route in Chicago’s ‘L’ system that primarily serves the northern suburbs and provides express service to downtown during weekday rush hours.
-
C.
Chicago Transit Authority Pink Line stations
Chicago Transit Authority Pink Line stations are the rapid transit stops along the CTA’s Pink Line, serving neighborhoods from the Near West Side of Chicago out to its western terminus.
-
D.
CTA Blue Line
The CTA Blue Line is a major Chicago 'L' rapid transit route that runs between O'Hare International Airport, downtown Chicago, and the city's western neighborhoods and suburbs.
-
E.
CTA Pink Line
The CTA Pink Line is a rapid transit route in Chicago's 'L' system that connects the city's West Side neighborhoods with the downtown Loop.
- 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_69bd4415eee08190bdce70276e56a5b4 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd708ba9888190baf4e79c8f159e9f |
completed | March 20, 2026, 4:06 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be89eb6cac8190b82bef41062fc8f1 |
completed | March 21, 2026, 12:07 p.m. |
Created at: March 20, 2026, 1:31 p.m.