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, California ⓘ
linked to:
Fremont
Martinez, California ⓘ Milpitas, California ⓘ
linked to:
Milpitas, California, United States
Pleasanton, California ⓘ San Ramon, California ⓘ Sunol, California ⓘ Walnut Creek, California ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses |
Benicia–Martinez Bridge
ⓘ
Carquinez Strait (via Benicia–Martinez Bridge) ⓘ
linked to:
Carquinez Pass
|
| 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, California
ⓘ
linked to:
Alameda County
Contra Costa County, California ⓘ
linked to:
Contra Costa County
San Francisco Bay Area ⓘ Santa Clara County, California ⓘ
linked to:
Santa Clara County
|
| maintainedBy |
California Department of Transportation
ⓘ
linked to:
Caltrans
|
| 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
ⓘ
linked to:
California, United States
|
| terminusNorth |
Interstate 80 in Fairfield, California
ⓘ
linked to:
Interstate 80
|
| terminusNorthAlternative | near Cordelia, California ⓘ |
| terminusSouth |
U.S. Route 101 in San Jose, California
ⓘ
linked to:
U.S. Route 101
|
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 linked to:
Dublin
subject linked to:
Concord, California, United States
subject linked to:
Cordelia
subject linked to:
Green Valley
linked to: Interstate 680
subject linked to:
Green Valley
linked to: Interstate 680
linked to: Interstate 680
linked to: Interstate 680
subject linked to:
State Route 84
linked to: Interstate 680
subject linked to:
Dublin/Pleasanton BART station
linked to: Interstate 680
subject linked to:
city of Fremont, California
linked to: Interstate 680