TriMet
E1080
TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
All labels observed (26)
How this entity was disambiguated
This entity first appeared as the object of triple T4378 — 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: TriMet Context triple: [Portland, Oregon, United States, hasPublicTransitSystem, TriMet]
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Washington Metro
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
C.
MBTA Fitchburg Line
The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
-
D.
Portland, Oregon, United States
Portland, Oregon, United States is a major Pacific Northwest city known for its vibrant arts scene, progressive culture, and lush natural surroundings.
-
E.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
- 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: TriMet Target entity description: TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Washington Metro
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
C.
MBTA Fitchburg Line
The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
-
D.
Portland, Oregon, United States
Portland, Oregon, United States is a major Pacific Northwest city known for its vibrant arts scene, progressive culture, and lush natural surroundings.
-
E.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
government agency
ⓘ
public transportation agency ⓘ regional transit agency ⓘ |
| collaboratesWith |
C-TRAN
ⓘ
Portland, Oregon, United States ⓘ
surface form:
City of Portland
Oregon Department of Transportation ⓘ Portland Streetcar ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareSystem |
Ventra
ⓘ
surface form:
Hop Fastpass
|
| focusesOn |
reducing automobile dependence
ⓘ
sustainable transportation ⓘ transit-oriented development ⓘ |
| governingBody | TriMet Board of Directors ⓘ |
| hasOfficialWebsite | https://trimet.org ⓘ |
| hasService |
bike-and-ride facilities
ⓘ
park-and-ride facilities ⓘ |
| headquartersLocation |
Portland, Oregon, United States
ⓘ
surface form:
Portland, Oregon
|
| industry | public transportation ⓘ |
| legalForm | municipal corporation ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| operates |
TriMet
self-linksurface differs
ⓘ
surface form:
LIFT paratransit
MAX Blue Line ⓘ MAX Green Line ⓘ MAX Light Rail ⓘ MAX Orange Line ⓘ MAX Red Line ⓘ MAX Yellow Line ⓘ TriMet bus system ⓘ WES Commuter Rail ⓘ bus service ⓘ commuter rail service ⓘ light rail service ⓘ paratransit service ⓘ |
| operatesInAdministrativeTerritory |
Clackamas County, Oregon
ⓘ
Multnomah County ⓘ
surface form:
Multnomah County, Oregon
Oregon ⓘ Washington County, Oregon ⓘ |
| parentOrganization |
Oregon
ⓘ
surface form:
State of Oregon
|
| primaryModeOfTransportation |
bus
ⓘ
commuter rail ⓘ light rail ⓘ |
| regionServed |
Portland metropolitan area
ⓘ
surface form:
Portland–Vancouver metropolitan area
|
| serves |
Portland metropolitan area
ⓘ
Portland, Oregon, United States ⓘ
surface form:
Portland, Oregon
|
| serviceType |
mass transit
ⓘ
public transit ⓘ |
| usesTicketingSystem |
contactless smart card
ⓘ
mobile ticketing ⓘ |
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: TriMet Description of subject: TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
Referenced by (200)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Portland, Oregon
this entity surface form:
TriMet MAX Blue Line
subject surface form:
Sunset Transit Center
subject surface form:
Sunset Transit Center
subject surface form:
Sunset Transit Center
this entity surface form:
TriMet transit system
this entity surface form:
TriMet MAX
this entity surface form:
TriMet bus service
this entity surface form:
TriMet fare system
this entity surface form:
TriMet bus network
subject surface form:
Pioneer Place
this entity surface form:
TriMet bus network
this entity surface form:
TriMet bus service
this entity surface form:
Tri-County Metropolitan Transportation District of Oregon
subject surface form:
MAX Light Rail
subject surface form:
Hop Fastpass