Triple
T21167219
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (CTA) main line |
E521596
|
entity |
| Predicate | hasTerminus |
P388
|
FINISHED |
| Object | Ashland/63rd station |
—
|
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: Ashland/63rd station | Statement: [Green Line (CTA) main line, hasTerminus, Ashland/63rd station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ashland/63rd station Context triple: [Green Line (CTA) main line, hasTerminus, Ashland/63rd station]
-
A.
Ashland/63rd station
chosen
Ashland/63rd station is a Chicago 'L' rapid transit station on the CTA's Green Line located in the West Englewood neighborhood on the South Side of Chicago.
-
B.
Ashland station
Ashland station is a commuter rail stop in Ashland, Massachusetts, serving passengers on the MBTA Framingham/Worcester Line.
-
C.
Columbia station
Columbia station is an elevated SkyTrain rapid transit station in New Westminster, British Columbia, serving Metro Vancouver’s Expo and Millennium Lines.
-
D.
Columbia station
Columbia station was the former name of what is now JFK/UMass station, a major rapid transit and commuter rail hub in Boston, Massachusetts.
-
E.
Jefferson Station
Jefferson Station is a major regional rail hub in Center City Philadelphia that connects numerous SEPTA commuter lines and provides convenient access to nearby attractions and commercial areas.
- 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_69e0b50e30748190b186824a206d39b9 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e7270fce708190a5715b55b406dd4e |
completed | April 21, 2026, 7:28 a.m. |
Created at: April 16, 2026, 3 p.m.