Triple
T12146646
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lafayette, California |
E289339
|
entity |
| Predicate | hasPublicTransit |
P522
|
FINISHED |
| Object | Lafayette BART station |
E439458
|
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: Lafayette BART station | Statement: [Lafayette, California, hasPublicTransit, Lafayette BART station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lafayette BART station Context triple: [Lafayette, California, hasPublicTransit, Lafayette BART station]
-
A.
Lafayette BART station
chosen
Lafayette BART station is a Bay Area Rapid Transit rail station in Lafayette, California, serving as a regional commuter hub for travel throughout the San Francisco Bay Area.
-
B.
Fremont station (BART)
Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
-
C.
Rockridge BART station
Rockridge BART station is an elevated rapid transit station in Oakland, California, serving the Rockridge neighborhood on the Bay Area Rapid Transit system.
-
D.
Lake Merritt BART station
Lake Merritt BART station is an underground Bay Area Rapid Transit station in Oakland, California, serving the Lake Merritt neighborhood and nearby civic and residential areas.
-
E.
Bay Point BART station
Bay Point BART station is an elevated rapid transit station in Contra Costa County that serves as the eastern terminus of BART’s Yellow Line in the San Francisco Bay Area.
- 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_69d6ab4c6710819097a9d228382dde43 |
completed | April 8, 2026, 7:23 p.m. |
| NER | Named-entity recognition | batch_69d915ac2ebc81909155f9b2fb4a2252 |
completed | April 10, 2026, 3:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f60a7e24ac819083e85fb8edb2ed2c |
completed | May 2, 2026, 2:30 p.m. |
Created at: April 8, 2026, 9:49 p.m.