Triple
T23158699
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | BART Yellow Line |
E578519
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Powell Street 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: Powell Street station | Statement: [BART Yellow Line, hasStation, Powell Street station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Powell Street station Context triple: [BART Yellow Line, hasStation, Powell Street station]
-
A.
Powell Street BART/Muni station
chosen
Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
-
B.
Powell Street terminal
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.
-
C.
Pioneer Courthouse Square station
Pioneer Courthouse Square station is a central downtown Portland MAX Light Rail stop serving multiple lines adjacent to the city’s main public square.
-
D.
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.
-
E.
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.
- 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_69e245fc75348190a0288401044c8af8 |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f18efeddd48190b6d03d2146583dcc |
completed | April 29, 2026, 4:54 a.m. |
Created at: April 17, 2026, 4:02 p.m.