Mount Diablo Unified School District
E325004
Mount Diablo Unified School District is a public school district serving students in Concord and surrounding communities in the East Bay region of California.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mount Diablo Unified School District canonical | 4 |
| Mt. Diablo Unified School District | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3079045 — 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: Mount Diablo Unified School District Context triple: [Concord, California, hasEducationalInstitution, Mount Diablo Unified School District]
-
A.
Chaffey Joint Union High School District
Chaffey Joint Union High School District is a large public high school district serving multiple communities in the Inland Empire region of Southern California.
-
B.
La Cañada Unified School District
La Cañada Unified School District is a public school district serving the community of La Cañada Flintridge in Los Angeles County, California, known for its high academic performance and strong college-preparatory programs.
-
C.
Moreno Valley Unified School District
Moreno Valley Unified School District is a public school district in Riverside County, California, responsible for providing K–12 education to students in the city of Moreno Valley.
-
D.
Yucaipa-Calimesa Joint Unified School District
Yucaipa-Calimesa Joint Unified School District is a public school district in Southern California that serves students in the neighboring communities of Yucaipa and Calimesa.
-
E.
Millbrae School District
Millbrae School District is a public school district in Millbrae, California, responsible for providing K–8 education to students in the local community.
- 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: Mount Diablo Unified School District Target entity description: Mount Diablo Unified School District is a public school district serving students in Concord and surrounding communities in the East Bay region of California.
-
A.
Chaffey Joint Union High School District
Chaffey Joint Union High School District is a large public high school district serving multiple communities in the Inland Empire region of Southern California.
-
B.
La Cañada Unified School District
La Cañada Unified School District is a public school district serving the community of La Cañada Flintridge in Los Angeles County, California, known for its high academic performance and strong college-preparatory programs.
-
C.
Moreno Valley Unified School District
Moreno Valley Unified School District is a public school district in Riverside County, California, responsible for providing K–12 education to students in the city of Moreno Valley.
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D.
Yucaipa-Calimesa Joint Unified School District
Yucaipa-Calimesa Joint Unified School District is a public school district in Southern California that serves students in the neighboring communities of Yucaipa and Calimesa.
-
E.
Millbrae School District
Millbrae School District is a public school district in Millbrae, California, responsible for providing K–8 education to students in the local community.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
public school district
ⓘ
school district in California ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Contra Costa County ⓘ |
| educationLevel | K–12 ⓘ |
| follows | California Department of Education guidelines ⓘ |
| governingBody | Board of Education of Mount Diablo Unified School District ⓘ |
| headquartersLocation |
Concord, California, United States
ⓘ
surface form:
Concord, California
|
| languageOfInstruction | English ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| namedAfter | Mount Diablo ⓘ |
| offersProgram |
adult education
ⓘ
career technical education ⓘ early childhood education ⓘ special education ⓘ |
| operates |
adult education programs
ⓘ
alternative education schools ⓘ elementary schools ⓘ high schools ⓘ middle schools ⓘ |
| region | East Bay ⓘ |
| sector | public education ⓘ |
| serves |
Clayton, California
ⓘ
Concord, California, United States ⓘ
surface form:
Concord, California
Pleasant Hill, California ⓘ Portions of Martinez, California ⓘ Portions of Walnut Creek, California ⓘ Unincorporated communities in central Contra Costa County ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| website | https://www.mdusd.org/ ⓘ |
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: Mount Diablo Unified School District Description of subject: Mount Diablo Unified School District is a public school district serving students in Concord and surrounding communities in the East Bay region of California.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
Concord, California, United States
→
hasEducationalInstitution
→
Mount Diablo Unified School District
ⓘ
subject surface form:
Concord, California
this entity surface form:
Mt. Diablo Unified School District