Triple
T21167220
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (CTA) main line |
E521596
|
entity |
| Predicate | hasTerminus |
P388
|
FINISHED |
| Object | Cottage Grove 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: Cottage Grove station | Statement: [Green Line (CTA) main line, hasTerminus, Cottage Grove station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cottage Grove station Context triple: [Green Line (CTA) main line, hasTerminus, Cottage Grove station]
-
A.
Cottage Grove station
chosen
Cottage Grove station is a Chicago Transit Authority 'L' rapid transit station on the South Side that serves as the eastern terminus of the Green Line's East 63rd branch.
-
B.
Tualatin station
Tualatin station is a commuter rail stop in Tualatin, Oregon, serving as one of the stations on TriMet’s WES Commuter Rail line in the Portland metropolitan area.
-
C.
Sturtevant station
Sturtevant station is a passenger rail station in Sturtevant, Wisconsin, serving Amtrak trains that connect the region to major Midwestern cities.
-
D.
Canton Junction station
Canton Junction station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail station in Canton, Massachusetts, serving as a junction point for trains on the Providence/Stoughton Line.
-
E.
Maple Meadows station
Maple Meadows station is a commuter rail station in Maple Ridge, British Columbia, served by TransLink’s West Coast Express line connecting the suburb to downtown Vancouver.
- 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.