Metropolitan Transit System
E80988
The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Metropolitan Transit System canonical | 3 |
| Metro transit system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T644768 — 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: Metropolitan Transit System Context triple: [San Diego Association of Governments, collaboratesWith, Metropolitan Transit System]
-
A.
Loop transportation system
The Loop transportation system is The Boring Company’s proposed network of underground tunnels using autonomous electric vehicles to move passengers rapidly and bypass surface traffic congestion.
-
B.
StarMetro public transit system
StarMetro public transit system is the city-operated bus and paratransit network serving residents, students, and visitors throughout Tallahassee, Florida.
-
C.
Metropolitan Transit Authority
The Metropolitan Transit Authority was a former public agency that operated and managed mass transit services in the Boston metropolitan area before being succeeded by the MBTA.
-
D.
Metro Rail
Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- 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: Metropolitan Transit System Target entity description: The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
-
A.
Loop transportation system
The Loop transportation system is The Boring Company’s proposed network of underground tunnels using autonomous electric vehicles to move passengers rapidly and bypass surface traffic congestion.
-
B.
StarMetro public transit system
StarMetro public transit system is the city-operated bus and paratransit network serving residents, students, and visitors throughout Tallahassee, Florida.
-
C.
Metropolitan Transit Authority
The Metropolitan Transit Authority was a former public agency that operated and managed mass transit services in the Boston metropolitan area before being succeeded by the MBTA.
-
D.
Metro Rail
Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
public transportation agency
ⓘ
transit operator ⓘ |
| areaServed |
Chula Vista
ⓘ
San Diego, California, United States ⓘ
surface form:
City of San Diego
Coronado ⓘ San Diego County ⓘ
surface form:
East County San Diego
El Cajon ⓘ Imperial Beach ⓘ La Mesa ⓘ Lemon Grove ⓘ National City ⓘ Santee ⓘ South Bay San Diego ⓘ Spring Valley, New York ⓘ
surface form:
Spring Valley
|
| country |
United States of America
ⓘ
surface form:
United States
|
| fareSystem |
Pronto card
ⓘ
mobile ticketing app ⓘ |
| focusesOn |
public mobility
ⓘ
regional connectivity ⓘ |
| governingBody | MTS Board of Directors ⓘ |
| hasPart |
MTS Bus
ⓘ
MTS ⓘ
surface form:
MTS Rapid
San Diego Trolley ⓘ |
| hasService |
demand-responsive paratransit
ⓘ
fixed-route bus ⓘ light rail transit lines ⓘ |
| headquartersLocation |
San Diego, California, United States
ⓘ
surface form:
San Diego, California
|
| industry | public transportation ⓘ |
| locatedIn | San Diego metropolitan area ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| operates |
bus services
ⓘ
commuter-style express bus services ⓘ light rail services ⓘ paratransit services ⓘ rapid bus services ⓘ trolley services ⓘ |
| providesServiceFor |
commuters
ⓘ
local residents ⓘ tourists ⓘ |
| publicTransitAgencyFor |
San Diego metropolitan area
ⓘ
surface form:
San Diego region
|
| regionServed | Southern California ⓘ |
| serves |
San Diego County
ⓘ
San Diego metropolitan area ⓘ
surface form:
San Diego region
|
| serviceType |
bus transit
ⓘ
light rail transit ⓘ public transit ⓘ |
| shortName | MTS ⓘ |
| transportationMode |
rail transport
ⓘ
road transport ⓘ |
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: Metropolitan Transit System Description of subject: The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Metro Micro
this entity surface form:
Metro transit system