Triple
T22595590
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak in Silicon Valley |
E574670
|
entity |
| Predicate | governingAgencyPartner |
P139240
|
FINISHED |
| Object | Capitol Corridor Joint Powers Authority |
—
|
NE NERFINISHED |
How this triple was built (3 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: Capitol Corridor Joint Powers Authority | Statement: [Amtrak in Silicon Valley, governingAgencyPartner, Capitol Corridor Joint Powers Authority]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Capitol Corridor Joint Powers Authority Context triple: [Amtrak in Silicon Valley, governingAgencyPartner, Capitol Corridor Joint Powers Authority]
-
A.
Capitol Corridor Joint Powers Authority
chosen
The Capitol Corridor Joint Powers Authority is a California-based public agency that oversees and manages Amtrak’s Capitol Corridor intercity passenger rail service between the Sacramento–San Francisco Bay Area region and surrounding communities.
-
B.
Peninsula Corridor Joint Powers Board
The Peninsula Corridor Joint Powers Board is a public agency formed by Bay Area counties to oversee and manage the Caltrain commuter rail service along the San Francisco Peninsula.
-
C.
Transbay Joint Powers Authority
The Transbay Joint Powers Authority is a regional government agency in San Francisco responsible for planning, building, and operating the Transbay transit facilities, including the Salesforce Transit Center.
-
D.
San Joaquin Regional Rail Commission
The San Joaquin Regional Rail Commission is a public agency in California responsible for planning, managing, and overseeing regional passenger rail services in the San Joaquin Valley and surrounding areas.
-
E.
San Joaquin Regional Transit District
San Joaquin Regional Transit District is the public transportation agency serving San Joaquin County, California, providing bus and related transit services to cities such as Stockton and Tracy.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: governingAgencyPartner Context triple: [Amtrak in Silicon Valley, governingAgencyPartner, Capitol Corridor Joint Powers Authority]
-
A.
governmentPartner
Indicates that one entity collaborates with or is formally partnered with a government or governmental body in some capacity.
-
B.
governingBodyPartnership
Indicates a formal cooperative relationship between governing bodies, where they jointly coordinate, manage, or support shared policies, programs, or responsibilities.
-
C.
collaboratingAgencies
Indicates that multiple agencies are working together in a coordinated manner toward shared goals or activities.
-
D.
governingPartner
Indicates that one entity serves as the primary ruling or controlling partner in relation to another within a governance or leadership structure.
-
E.
governancePartner
chosen
Indicates a relationship in which one entity collaborates with or supports another in governing, overseeing, or making strategic decisions for an organization, project, or system.
- F. None of above.
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_69e245bc11308190b69d794d5d1e0bb6 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f16268cb54819084a0f27ec0473f35 |
completed | April 29, 2026, 1:44 a.m. |
| PD | Predicate disambiguation | batch_69ee627be4248190889a88764624e174 |
completed | April 26, 2026, 7:07 p.m. |
Created at: April 17, 2026, 2:49 p.m.