Triple
T16245642
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | El Cerrito del Norte station |
E394363
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object | West Contra Costa County |
E17060
|
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: West Contra Costa County | Statement: [El Cerrito del Norte station, serves, West Contra Costa County]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: West Contra Costa County Context triple: [El Cerrito del Norte station, serves, West Contra Costa County]
-
A.
Contra Costa County
chosen
Contra Costa County is a populous county in the San Francisco Bay Area known for its suburban communities, regional parks, and role as a residential and industrial hub east of Oakland and San Francisco.
-
B.
Alameda County
Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
-
C.
San Francisco County
San Francisco County is a densely populated, culturally diverse urban county on the tip of the San Francisco Peninsula, encompassing the city of San Francisco and serving as a major economic and technological hub in California.
-
D.
Solano County
Solano County is a county in the San Francisco Bay Area–Sacramento Valley region known for its mix of suburban communities, agriculture, and key transportation corridors.
-
E.
Santa Clara County
Santa Clara County is a populous and economically significant county in California’s Silicon Valley, home to major technology companies and cities such as San Jose.
- 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_69d87f2171208190951025e526947816 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e24561d250819096f709ea8751fcb9 |
completed | April 17, 2026, 2:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a002d9de7548190974851dc54465f0b |
completed | May 10, 2026, 7:02 a.m. |
Created at: April 10, 2026, 5:04 a.m.