California State Route 4
E109514
California State Route 4 is a scenic east–west highway in Northern California that crosses the Sierra Nevada and connects the San Francisco Bay Area with the Central Valley and mountain communities.
All labels observed (4)
| Label | Occurrences |
|---|---|
| California State Route 4 canonical | 34 |
| California State Route 4 (in Sierra Nevada region) | 1 |
| California State Route 4 (via I-80 in Hercules/Pinole area) | 1 |
| State Route 4 (California) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T463200 — 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: California State Route 4 Context triple: [Sierra Nevada passes, traversedBy, California State Route 4]
-
A.
California State Route 28
California State Route 28 is a scenic state highway that runs along the north shore of Lake Tahoe, connecting communities in the Sierra Nevada region of California.
-
B.
California State Route 88
California State Route 88 is a scenic highway in California that crosses the Sierra Nevada, providing an all-weather route between the Central Valley and Nevada via Carson Pass.
-
C.
California State Route 190
California State Route 190 is an east–west state highway in California that traverses the Sierra Nevada and Death Valley, providing access to Death Valley National Park and connecting remote desert and mountain communities.
-
D.
California State Route 120
California State Route 120 is a scenic east–west highway in California that crosses the Sierra Nevada and provides one of the main road entrances to Yosemite National Park via Tioga Pass.
-
E.
California State Route 108
California State Route 108 is a scenic east–west highway in central California that crosses the Sierra Nevada via the high-elevation Sonora Pass, connecting the Central Valley with the eastern Sierra region.
- 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: California State Route 4 Target entity description: California State Route 4 is a scenic east–west highway in Northern California that crosses the Sierra Nevada and connects the San Francisco Bay Area with the Central Valley and mountain communities.
-
A.
California State Route 28
California State Route 28 is a scenic state highway that runs along the north shore of Lake Tahoe, connecting communities in the Sierra Nevada region of California.
-
B.
California State Route 88
California State Route 88 is a scenic highway in California that crosses the Sierra Nevada, providing an all-weather route between the Central Valley and Nevada via Carson Pass.
-
C.
California State Route 190
California State Route 190 is an east–west state highway in California that traverses the Sierra Nevada and Death Valley, providing access to Death Valley National Park and connecting remote desert and mountain communities.
-
D.
California State Route 120
California State Route 120 is a scenic east–west highway in California that crosses the Sierra Nevada and provides one of the main road entrances to Yosemite National Park via Tioga Pass.
-
E.
California State Route 108
California State Route 108 is a scenic east–west highway in central California that crosses the Sierra Nevada via the high-elevation Sonora Pass, connecting the Central Valley with the eastern Sierra region.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
California state highway
ⓘ
road transportation infrastructure ⓘ state highway ⓘ |
| abbreviation |
CA 4
ⓘ
SR 4 ⓘ |
| connects |
Central Valley
ⓘ
San Francisco Bay Area ⓘ Sierra Nevada mountain communities ⓘ |
| connectsTo |
Interstate 680
ⓘ
Interstate 80 ⓘ State Route 160 ⓘ State Route 49 ⓘ State Route 89 ⓘ State Route 99 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county |
Alpine County
ⓘ
Calaveras County ⓘ Contra Costa County ⓘ San Joaquin County ⓘ |
| crosses | Sierra Nevada ⓘ |
| direction | east–west ⓘ |
| easternTerminus | near Markleeville at State Route 89 ⓘ |
| highwayNumber | 4 ⓘ |
| maintainedBy |
California Department of Transportation
ⓘ
linked to:
Caltrans
|
| mountainPass | Ebbetts Pass ⓘ |
| notableFeature |
commuter corridor for eastern Contra Costa County
ⓘ
scenic Sierra Nevada crossing ⓘ |
| partOf |
California Freeway and Expressway System (in designated segments)
ⓘ
linked to:
California state highway system
State Scenic Highway System (in designated segments) ⓘ |
| passesThrough |
Angels Camp
ⓘ
Antioch ⓘ
linked to:
Antioch, California
Arnold ⓘ Bear Valley ⓘ Brentwood ⓘ Concord ⓘ Copperopolis ⓘ Farmington ⓘ Hercules ⓘ Markleeville vicinity ⓘ Martinez ⓘ
linked to:
Martinez, California
Murphys ⓘ Oakley ⓘ Pittsburg ⓘ Stockton ⓘ |
| region | Northern California ⓘ |
| segmentType |
expressway in parts of eastern Contra Costa and San Joaquin counties
ⓘ
freeway in parts of Contra Costa County ⓘ narrow mountain road over Ebbetts Pass ⓘ two-lane rural highway in the Sierra Nevada ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| westernTerminus |
Interstate 80 in Hercules
ⓘ
linked to:
Interstate 80
|
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: California State Route 4 Description of subject: California State Route 4 is a scenic east–west highway in Northern California that crosses the Sierra Nevada and connects the San Francisco Bay Area with the Central Valley and mountain communities.
Referenced by (37)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: California State Route 4
linked to: California State Route 4
subject linked to:
Oakley
subject linked to:
Farmington
subject linked to:
Eastshore Freeway (Interstate 80)
linked to: California State Route 4
subject linked to:
Linden, California, United States