Interstate 680
E166070
Interstate 680 is a major north–south freeway in the San Francisco Bay Area that connects cities in Contra Costa, Alameda, and Santa Clara counties as part of California’s regional and interstate transportation network.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Interstate 680 canonical | 42 |
| Interstate 680 corridor | 2 |
| Interstate 580 | 1 |
| Interstate 680 in Concord | 1 |
| Interstate 680 in Fremont | 1 |
| Interstate 680 in Milpitas | 1 |
| Interstate 680 in Walnut Creek | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T797843 — 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: Interstate 680 Context triple: [Contra Costa County, hasMajorHighway, Interstate 680]
-
A.
Interstate 680
Interstate 680 is a U.S. Interstate Highway that serves as a key regional connector in the Midwest, linking parts of Iowa and Nebraska and facilitating traffic around the Omaha–Council Bluffs metropolitan area.
-
B.
Interstate 280
Interstate 280 is a major north–south freeway in the San Francisco Bay Area of California, running between San Jose and San Francisco and known for its scenic route along the Peninsula.
-
C.
Interstate 580
Interstate 580 is a U.S. Interstate Highway that serves as a key north–south connector linking Carson City with Reno and the broader Interstate network in northern Nevada.
-
D.
Interstate 880
Interstate 880 is a major north–south freeway in California’s San Francisco Bay Area that runs through the East Bay, connecting cities such as San Jose and Oakland.
-
E.
Interstate 480
Interstate 480 is a short auxiliary Interstate Highway that serves as a key connector between downtown Omaha, Nebraska, and Council Bluffs, Iowa, linking Interstate 80 and Interstate 29.
- 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: Interstate 680 Target entity description: Interstate 680 is a major north–south freeway in the San Francisco Bay Area that connects cities in Contra Costa, Alameda, and Santa Clara counties as part of California’s regional and interstate transportation network.
-
A.
Interstate 680
Interstate 680 is a U.S. Interstate Highway that serves as a key regional connector in the Midwest, linking parts of Iowa and Nebraska and facilitating traffic around the Omaha–Council Bluffs metropolitan area.
-
B.
Interstate 280
Interstate 280 is a major north–south freeway in the San Francisco Bay Area of California, running between San Jose and San Francisco and known for its scenic route along the Peninsula.
-
C.
Interstate 580
Interstate 580 is a U.S. Interstate Highway that serves as a key north–south connector linking Carson City with Reno and the broader Interstate network in northern Nevada.
-
D.
Interstate 880
Interstate 880 is a major north–south freeway in California’s San Francisco Bay Area that runs through the East Bay, connecting cities such as San Jose and Oakland.
-
E.
Interstate 480
Interstate 480 is a short auxiliary Interstate Highway that serves as a key connector between downtown Omaha, Nebraska, and Council Bluffs, Iowa, linking Interstate 80 and Interstate 29.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Interstate Highway
ⓘ
freeway ⓘ limited-access highway ⓘ |
| abbreviation | I-680 ⓘ |
| connectsCity |
Danville, California
ⓘ
Dublin, California ⓘ Fremont ⓘ
surface form:
Fremont, California
Martinez, California ⓘ Milpitas, California, United States ⓘ
surface form:
Milpitas, California
Pleasanton, California ⓘ San Ramon, California ⓘ Sunol, California ⓘ Walnut Creek, California ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Benicia–Martinez Bridge
ⓘ
Carquinez Pass ⓘ
surface form:
Carquinez Strait (via Benicia–Martinez Bridge)
|
| direction | north–south ⓘ |
| hasLaneType |
express lanes
ⓘ
high-occupancy vehicle lanes ⓘ |
| hasTollSection | Benicia–Martinez Bridge ⓘ |
| intersects |
Interstate 280
ⓘ
Interstate 580 ⓘ Interstate 780 NERFINISHED ⓘ Interstate 80 ⓘ State Route 237 ⓘ State Route 24 ⓘ State Route 4 ⓘ State Route 84 ⓘ U.S. Route 101 ⓘ |
| locatedIn |
Alameda County
ⓘ
surface form:
Alameda County, California
Contra Costa County ⓘ
surface form:
Contra Costa County, California
San Francisco Bay Area ⓘ Santa Clara County ⓘ
surface form:
Santa Clara County, California
|
| maintainedBy |
Caltrans
ⓘ
surface form:
California Department of Transportation
|
| numberingFollows | even-numbered north–south auxiliary convention in California ⓘ |
| openedInPart |
1960s
ⓘ
1970s ⓘ |
| partOf |
Interstate Highway System
ⓘ
regional transportation network of the San Francisco Bay Area ⓘ |
| servesCorridor |
Diablo Valley
ⓘ
East Bay ⓘ San Ramon Valley ⓘ South Bay ⓘ Tri-Valley ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| terminusNorth |
Interstate 80
ⓘ
surface form:
Interstate 80 in Fairfield, California
|
| terminusNorthAlternative | near Cordelia, California ⓘ |
| terminusSouth |
U.S. Route 101
ⓘ
surface form:
U.S. Route 101 in San Jose, California
|
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: Interstate 680 Description of subject: Interstate 680 is a major north–south freeway in the San Francisco Bay Area that connects cities in Contra Costa, Alameda, and Santa Clara counties as part of California’s regional and interstate transportation network.
Referenced by (49)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Dublin, California
subject surface form:
Concord, California
subject surface form:
Cordelia, California
subject surface form:
Green Valley, Solano County, California
this entity surface form:
Interstate 680 corridor
subject surface form:
Green Valley, Solano County, California
this entity surface form:
Interstate 580
this entity surface form:
Interstate 680 in Concord
this entity surface form:
Interstate 680 in Fremont
subject surface form:
State Route 84 (California)
this entity surface form:
Interstate 680 corridor
subject surface form:
Dublin/Pleasanton station
this entity surface form:
Interstate 680 in Milpitas
subject surface form:
Fremont, California
this entity surface form:
Interstate 680 in Walnut Creek