Triple
T19232399
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | E Embarcadero line |
E480902
|
entity |
| Predicate | servesDestination |
P2066
|
FINISHED |
| Object | Caltrain station at 4th & King |
—
|
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: Caltrain station at 4th & King | Statement: [E Embarcadero line, servesDestination, Caltrain station at 4th & King]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Caltrain station at 4th & King Context triple: [E Embarcadero line, servesDestination, Caltrain station at 4th & King]
-
A.
Caltrain at Millbrae station
Caltrain at Millbrae station is a commuter rail service stop in Millbrae, California, providing regional rail connections along the San Francisco Peninsula and linking with local transit systems.
-
B.
Broadway Caltrain station
Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
-
C.
San Francisco 4th and King Street station
chosen
San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
-
D.
Caltrain stations
Caltrain stations are commuter rail stops along the San Francisco Peninsula and South Bay that serve as key transit hubs connecting cities between San Francisco and Gilroy.
-
E.
San Francisco Caltrain Station
San Francisco Caltrain Station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services connecting the city with the Peninsula and Silicon Valley.
- 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_69d8e8ccb8f48190ad420098e74fb1db |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fa9db56081908f50d318d7fc9eaa |
completed | April 20, 2026, 10:06 a.m. |
Created at: April 10, 2026, 1:25 p.m.