Triple
T9597612
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Oakland Amtrak station (Jack London Square) |
E231570
|
entity |
| Predicate | servesRoute |
P31354
|
FINISHED |
| Object | Oakland–San Jose segment of Capitol Corridor |
E13501
|
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: Oakland–San Jose segment of Capitol Corridor | Statement: [Oakland Amtrak station (Jack London Square), servesRoute, Oakland–San Jose segment of Capitol Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oakland–San Jose segment of Capitol Corridor Context triple: [Oakland Amtrak station (Jack London Square), servesRoute, Oakland–San Jose segment of Capitol Corridor]
-
A.
Amtrak Capitol Corridor
chosen
Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
-
B.
Alameda/Oakland–San Francisco route
The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
-
C.
Altamont Corridor Express
Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
-
D.
Dublin/Pleasanton–Daly City line
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.
-
E.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
- 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_69ca8482884481908eccdfdf64d6fbf7 |
completed | March 30, 2026, 2:11 p.m. |
| NER | Named-entity recognition | batch_69cd9a34f5408190ba72ba8311eb259c |
completed | April 1, 2026, 10:20 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d1619f4170819092ae90b2896b0855 |
completed | April 4, 2026, 7:08 p.m. |
Created at: March 30, 2026, 8:07 p.m.