Triple
T16194753
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union City station |
E393032
|
entity |
| Predicate | line |
P1293
|
FINISHED |
| Object | BART Dublin/Pleasanton–Daly City line (historical/operational variants) |
E90457
|
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: BART Dublin/Pleasanton–Daly City line (historical/operational variants) | Statement: [Union City station, line, BART Dublin/Pleasanton–Daly City line (historical/operational variants)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BART Dublin/Pleasanton–Daly City line (historical/operational variants) Context triple: [Union City station, line, BART Dublin/Pleasanton–Daly City line (historical/operational variants)]
-
A.
BART Pittsburg/Bay Point line (historical)
The BART Pittsburg/Bay Point line (historical) was a former Bay Area Rapid Transit service route connecting San Francisco and Oakland to the eastern Contra Costa County suburbs, including Pittsburg and Bay Point.
-
B.
BART Berryessa/North San José–Daly City line
The BART Berryessa/North San José–Daly City line is a Bay Area Rapid Transit service connecting San José’s Berryessa/North San José station with Daly City through downtown San Francisco and the East Bay.
-
C.
Dublin/Pleasanton–Daly City line
chosen
The Dublin/Pleasanton–Daly City line is a Bay Area Rapid Transit (BART) heavy rail service connecting the East Bay’s Tri-Valley area with San Francisco via a transbay route.
-
D.
BART Blue Line
The BART Blue Line is a Bay Area Rapid Transit service route that runs through San Francisco and the greater Bay Area, connecting key urban centers and regional destinations.
-
E.
BART Antioch–SFO+Millbrae line
The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
- 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_69d87f1e49ac8190a311b54d32990576 |
completed | April 10, 2026, 4:39 a.m. |
| NER | Named-entity recognition | batch_69e222d851188190b2452d165e4fc4bd |
completed | April 17, 2026, 12:08 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffff0bfd08819083afc4bea1b99aad |
completed | May 10, 2026, 3:44 a.m. |
Created at: April 10, 2026, 5:02 a.m.