Triple
T664084
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | BART |
E12820
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Powell Street station |
E39998
|
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: Powell Street station | Statement: [BART, hasStation, Powell Street station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Powell Street station Context triple: [BART, hasStation, Powell Street station]
-
A.
Powell Street terminal
chosen
Powell Street terminal is a major San Francisco cable car turnaround and boarding point located near Union Square, serving as a key hub for tourists and commuters.
-
B.
Montgomery Street station
Montgomery Street station is a major Bay Area Rapid Transit (BART) and Muni Metro subway station serving downtown San Francisco’s Financial District.
-
C.
Pioneer Courthouse/Southwest 6th Avenue MAX station
Pioneer Courthouse/Southwest 6th Avenue MAX station is a light rail stop in downtown Portland, Oregon, serving multiple MAX lines near the historic Pioneer Courthouse and Pioneer Courthouse Square.
-
D.
Brigham Circle station
Brigham Circle station is a light rail stop on the MBTA Green Line E branch located in Boston’s Mission Hill neighborhood.
-
E.
Heath Street station
Heath Street station is the southern terminus of the MBTA Green Line E branch, serving Boston’s Mission Hill neighborhood with light rail service.
- 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_69a493355dec819098d4244b2fa34885 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a49fd1f0ec819087003d30bbab2fa6 |
completed | March 1, 2026, 8:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a5dc9b645881908c7d2d69aa2f44aa |
completed | March 2, 2026, 6:53 p.m. |
Created at: March 1, 2026, 7:36 p.m.