C-TRAN
E5644
C-TRAN is the public transit agency serving Clark County and the Vancouver, Washington area, providing bus and express services often coordinated with Portland’s TriMet system.
All labels observed (7)
| Label | Occurrences |
|---|---|
| C-TRAN canonical | 11 |
| C-TRAN (via regional agreements) | 1 |
| C-TRAN Board of Directors | 1 |
| C-TRAN Route 4 | 1 |
| C-TRAN bus network | 1 |
| C-TRAN transit centers | 1 |
| C-TRAN transit services | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T54813 — 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: C-TRAN Context triple: [TriMet, collaboratesWith, C-TRAN]
-
A.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
B.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
-
C.
RideKC bus system
The RideKC bus system is the regional public transportation network serving the Kansas City metropolitan area, providing bus services across multiple cities and counties.
-
D.
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.
-
E.
TriMet
TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
- 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: C-TRAN Target entity description: C-TRAN is the public transit agency serving Clark County and the Vancouver, Washington area, providing bus and express services often coordinated with Portland’s TriMet system.
-
A.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
B.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
-
C.
RideKC bus system
The RideKC bus system is the regional public transportation network serving the Kansas City metropolitan area, providing bus services across multiple cities and counties.
-
D.
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.
-
E.
AeroTrain
AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bus operator
ⓘ
public transit agency ⓘ |
| boardComposition | local elected officials ⓘ |
| connectsTo |
Portland, Oregon, United States
ⓘ
surface form:
Portland, Oregon
MAX Light Rail ⓘ
surface form:
TriMet MAX Light Rail
TriMet bus network ⓘ |
| coordinatesWith | TriMet ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environmentalFocus |
emissions reduction
ⓘ
public transit promotion ⓘ |
| fareSystem | Hop Fastpass ⓘ |
| focusesOn |
local mobility within Clark County
ⓘ
regional connectivity with Portland ⓘ |
| fundingSource |
fares
ⓘ
federal grants ⓘ local sales tax ⓘ state grants ⓘ |
| governedBy |
C-TRAN
self-linksurface differs
ⓘ
surface form:
C-TRAN Board of Directors
|
| hasLanguage | English ⓘ |
| hasServiceBrand | The Vine ⓘ |
| hasWebsite | https://www.c-tran.com/ ⓘ |
| headquartersLocation | Vancouver, Washington ⓘ |
| industry | public transportation ⓘ |
| legalForm | public transit authority ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| modeOfTransport | bus ⓘ |
| offers |
ADA paratransit
ⓘ
park-and-ride facilities ⓘ reduced fare programs ⓘ vanpool programs ⓘ |
| operatesInMetropolitanArea | Portland metropolitan area ⓘ |
| operatesRouteType |
interstate commuter routes
ⓘ
limited-stop express routes ⓘ neighborhood circulator routes ⓘ |
| providesServiceType |
bus rapid transit
ⓘ
commuter bus service ⓘ express bus service ⓘ local bus service ⓘ paratransit service ⓘ |
| regionServed | Southwest Washington ⓘ |
| safetyFocus | traffic safety ⓘ |
| serves |
Clark County, Washington
ⓘ
Vancouver, Washington ⓘ |
| serviceAreaType |
rural
ⓘ
suburban ⓘ urban ⓘ |
| usesPaymentMethod |
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: C-TRAN Description of subject: C-TRAN is the public transit agency serving Clark County and the Vancouver, Washington area, providing bus and express services often coordinated with Portland’s TriMet system.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
C-TRAN Board of Directors
this entity surface form:
C-TRAN transit centers
subject surface form:
MAX Red Line
this entity surface form:
C-TRAN (via regional agreements)
this entity surface form:
C-TRAN bus network
this entity surface form:
C-TRAN Route 4
subject surface form:
Hop Fastpass