Pomona Operations and Maintenance Facility
E422624
The Pomona Operations and Maintenance Facility is a major Foothill Transit hub where the agency’s bus fleet is stored, serviced, and maintained for public transportation operations in the Pomona Valley area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pomona Operations and Maintenance Facility canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4226881 — 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: Pomona Operations and Maintenance Facility Context triple: [Foothill Transit, hasDepot, Pomona Operations and Maintenance Facility]
-
A.
Gianelli Pumping–Generating Plant
The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
-
B.
Tracy Pumping Plant
Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
-
C.
Jones Pumping Plant
Jones Pumping Plant is a major water pumping facility in California’s Central Valley that lifts and conveys water from the Sacramento-San Joaquin Delta into the Central Valley Project’s distribution system.
-
D.
South Bay Pumping Plant
South Bay Pumping Plant is a key water pumping facility in California’s State Water Project that lifts and conveys water through the South Bay Aqueduct to serve urban and industrial users in the San Francisco Bay Area.
-
E.
Capitol Power Plant
The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
- 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: Pomona Operations and Maintenance Facility Target entity description: The Pomona Operations and Maintenance Facility is a major Foothill Transit hub where the agency’s bus fleet is stored, serviced, and maintained for public transportation operations in the Pomona Valley area.
-
A.
Gianelli Pumping–Generating Plant
The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
-
B.
Tracy Pumping Plant
Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
-
C.
Jones Pumping Plant
Jones Pumping Plant is a major water pumping facility in California’s Central Valley that lifts and conveys water from the Sacramento-San Joaquin Delta into the Central Valley Project’s distribution system.
-
D.
South Bay Pumping Plant
South Bay Pumping Plant is a key water pumping facility in California’s State Water Project that lifts and conveys water through the South Bay Aqueduct to serve urban and industrial users in the San Francisco Bay Area.
-
E.
Capitol Power Plant
The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
bus operations and maintenance facility
ⓘ
public transportation facility ⓘ |
| category |
bus depot
ⓘ
transit operations center ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
bus maintenance
ⓘ
bus servicing ⓘ bus storage ⓘ |
| hasClient | Foothill Transit riders ⓘ |
| locatedIn |
Pomona Valley
NERFINISHED
ⓘ
Pomona, California NERFINISHED ⓘ |
| locatedInState |
California, United States
ⓘ
surface form:
California
|
| operator | Foothill Transit NERFINISHED ⓘ |
| ownedBy | Foothill Transit NERFINISHED ⓘ |
| partOf | Foothill Transit network NERFINISHED ⓘ |
| primaryRole |
maintenance hub for Foothill Transit
ⓘ
operations hub for Foothill Transit ⓘ |
| regionServed | eastern Los Angeles County ⓘ |
| sector | public transit ⓘ |
| serves |
Foothill Transit bus fleet
ⓘ
Pomona Valley area ⓘ |
| supportsServiceType |
express bus service
ⓘ
local bus service ⓘ |
| transportModeServed | bus ⓘ |
| usedFor | public transportation operations support ⓘ |
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: Pomona Operations and Maintenance Facility Description of subject: The Pomona Operations and Maintenance Facility is a major Foothill Transit hub where the agency’s bus fleet is stored, serviced, and maintained for public transportation operations in the Pomona Valley area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.