Triple
T6188906
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Diridon Station |
E138135
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object | Altamont Corridor Express stations |
E94682
|
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: Altamont Corridor Express stations | Statement: [Diridon Station, category, Altamont Corridor Express stations]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Altamont Corridor Express stations Context triple: [Diridon Station, category, Altamont Corridor Express stations]
-
A.
California (Green Line) station
California (Green Line) station is a Chicago 'L' rapid transit stop on the Green Line located in the city's West Garfield Park neighborhood.
-
B.
Altamont Corridor Express
chosen
Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
-
C.
Castro Valley station
Castro Valley station is a Bay Area Rapid Transit (BART) station in Castro Valley, California, serving as a regional commuter rail stop in the East Bay.
-
D.
Alum Rock station
Alum Rock station is a public transit stop in San Jose, California, serving as a terminus on the Santa Clara Valley Transportation Authority (VTA) light rail system.
-
E.
Mountain View station
Mountain View station is a commuter rail stop in Mountain View, California, serving as a key transit hub on the Caltrain line and connecting to local light rail and bus services.
- 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_69c008a8fd408190b7ec6e42934974a6 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c062192c5481909eb41f8c5d1208a3 |
completed | March 22, 2026, 9:41 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c16f06c770819087e055cfe6c8b134 |
completed | March 23, 2026, 4:49 p.m. |
Created at: March 22, 2026, 4:19 p.m.