CA 12
E854279
CA 12 is a state highway in California that runs east–west across the northern part of the state, connecting the Sonoma wine region to the Central Valley and the Sacramento–San Joaquin River Delta.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CA 12 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10305542 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CA 12 Context triple: [California State Route 12, abbreviation, CA 12]
-
A.
CA 120
CA 120 is a California state highway that runs from the Central Valley through the Sierra Nevada into Yosemite National Park, serving as a key east–west route and park entrance road.
-
B.
CA 2
CA 2 is a California state highway that runs from Santa Monica through Los Angeles into the San Gabriel Mountains, serving as both an urban thoroughfare and a scenic mountain route.
-
C.
CA 82
CA 82 is a major state highway in California that follows the historic El Camino Real corridor through the San Francisco Peninsula and Silicon Valley.
-
D.
CA 4
CA 4 is a state highway in California that runs east–west from the San Francisco Bay Area across the Central Valley into the Sierra Nevada.
-
E.
CA 92
CA 92 is a major east–west state highway in the San Francisco Bay Area that connects Half Moon Bay on the coast to Hayward via the San Mateo–Hayward Bridge.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CA 12 Target entity description: CA 12 is a state highway in California that runs east–west across the northern part of the state, connecting the Sonoma wine region to the Central Valley and the Sacramento–San Joaquin River Delta.
-
A.
CA 120
CA 120 is a California state highway that runs from the Central Valley through the Sierra Nevada into Yosemite National Park, serving as a key east–west route and park entrance road.
-
B.
CA 2
CA 2 is a California state highway that runs from Santa Monica through Los Angeles into the San Gabriel Mountains, serving as both an urban thoroughfare and a scenic mountain route.
-
C.
CA 82
CA 82 is a major state highway in California that follows the historic El Camino Real corridor through the San Francisco Peninsula and Silicon Valley.
-
D.
CA 4
CA 4 is a state highway in California that runs east–west from the San Francisco Bay Area across the Central Valley into the Sierra Nevada.
-
E.
CA 92
CA 92 is a major east–west state highway in the San Francisco Bay Area that connects Half Moon Bay on the coast to Hayward via the San Mateo–Hayward Bridge.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf | state highway ⓘ |
| abbreviation | SR 12 ⓘ |
| connectsRegion |
Central Valley
NERFINISHED
ⓘ
Sacramento–San Joaquin River Delta NERFINISHED ⓘ Sonoma wine region NERFINISHED ⓘ |
| connectsToHighway |
I-5
NERFINISHED
ⓘ
I-80 NERFINISHED ⓘ SR 99 NERFINISHED ⓘ US 101 NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossesRegion | Sacramento–San Joaquin River Delta NERFINISHED ⓘ |
| crossesRiver |
Sacramento River
NERFINISHED
ⓘ
San Joaquin River NERFINISHED ⓘ |
| easternTerminusNear | Lodi NERFINISHED ⓘ |
| hasDirectionA | West ⓘ |
| hasDirectionB | East ⓘ |
| highwaySystem | California State Route System NERFINISHED ⓘ |
| locatedInRegion | Northern California ⓘ |
| maintainedBy |
Caltrans
ⓘ
surface form:
California Department of Transportation
|
| orientation | east–west ⓘ |
| partOf | California Freeway and Expressway System NERFINISHED ⓘ |
| passesThroughArea |
Sacramento–San Joaquin River Delta islands
NERFINISHED
ⓘ
wine country ⓘ |
| passesThroughCity |
Fairfield
NERFINISHED
ⓘ
Lodi NERFINISHED ⓘ Rio Vista NERFINISHED ⓘ Santa Rosa NERFINISHED ⓘ Sonoma NERFINISHED ⓘ |
| passesThroughCounty |
Napa County
NERFINISHED
ⓘ
Sacramento County NERFINISHED ⓘ San Joaquin County NERFINISHED ⓘ Solano County NERFINISHED ⓘ Sonoma County NERFINISHED ⓘ |
| roadType |
expressway (in segments)
ⓘ
highway ⓘ surface street (in segments) ⓘ |
| routeNumber | 12 ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedFor |
access to Delta recreation areas
ⓘ
access to Sonoma County wineries ⓘ regional travel between North Bay and Central Valley ⓘ |
| westernTerminusNear | Sebastopol NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CA 12 Description of subject: CA 12 is a state highway in California that runs east–west across the northern part of the state, connecting the Sonoma wine region to the Central Valley and the Sacramento–San Joaquin River Delta.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
State Route 12 (California)