Triple
T21789786
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Caltrain stations |
E537938
|
entity |
| Predicate | southernExtension |
P145657
|
FINISHED |
| Object | San Jose–Gilroy |
—
|
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: San Jose–Gilroy | Statement: [Caltrain stations, southernExtension, San Jose–Gilroy]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Jose–Gilroy Context triple: [Caltrain stations, southernExtension, San Jose–Gilroy]
-
A.
San Jose–Sacramento
San Jose–Sacramento is a passenger rail corridor in Northern California connecting the San Francisco Bay Area city of San Jose with the state capital, Sacramento.
-
B.
Gilroy
Gilroy is a Scottish surname and sept historically associated with Clan Grant in the Scottish Highlands.
-
C.
Gilroy
chosen
Gilroy is a city in Santa Clara County, California, known for its garlic production and as the southern endpoint of Caltrain commuter rail service.
-
D.
Sacramento–Bakersfield
Sacramento–Bakersfield is a major north–south rail and transportation corridor in California’s Central Valley connecting the state capital with the southern San Joaquin Valley.
-
E.
San Jose Diridon
San Jose Diridon is a major intermodal transit hub in San Jose, California, serving Amtrak, commuter rail, light rail, and bus services.
- 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: southernExtension Context triple: [Caltrain stations, southernExtension, San Jose–Gilroy]
-
A.
southernExtensionOpeningDate
Indicates the date on which the southern extension of something (such as a route, line, or facility) was officially opened or began operation.
-
B.
southernTerminusVariant
Indicates a variant or alternative form of the southern endpoint or terminus of something (such as a route, line, or boundary).
-
C.
southernConnection
Indicates a relationship where one entity is connected to, associated with, or accessed via the southern part or side of another entity.
-
D.
northernExtensionLocatedIn
Indicates that the northern extension or northernmost part of one entity is geographically located within the area or boundaries of another entity.
-
E.
southTerminusRegion
Indicates that a given region serves as the southern endpoint or terminus of a specified route, feature, or entity.
- F. None of above. chosen
Provenance (4 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_69e0c47198f881908cb0d237266c10e9 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69f0621ed2b481909e3df17aee9cd8f7 |
completed | April 28, 2026, 7:30 a.m. |
| PD | Predicate disambiguation | batch_69e6be751ce881909badced245ef76c7 |
completed | April 21, 2026, 12:01 a.m. |
| PDg | Predicate description generation | batch_69e6c3a2898881909748935cf92f898c |
completed | April 21, 2026, 12:24 a.m. |
Created at: April 16, 2026, 6:52 p.m.