Sound Transit Board of Directors
E204885
The Sound Transit Board of Directors is the policy-making and oversight body that directs planning, funding, and operation of the regional transit system serving the Seattle metropolitan area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sound Transit Board | 4 |
| Sound Transit Board of Directors canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1817571 — 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: Sound Transit Board of Directors Context triple: [Sound Transit, governingBody, Sound Transit Board of Directors]
-
A.
Sound Transit
Sound Transit is the regional public transit agency that plans, builds, and operates light rail, commuter rail, and express bus services in the greater Puget Sound area of Washington State.
-
B.
TriMet Board of Directors
The TriMet Board of Directors is the policy-making and oversight body that directs the operations and strategic decisions of the Portland-area public transit agency TriMet.
-
C.
Sound Transit Link light rail
Sound Transit Link light rail is a regional rapid transit system serving Seattle and surrounding communities with frequent, high-capacity train service.
-
D.
Metro Transit
Metro Transit is the primary public transportation agency for the Minneapolis–Saint Paul metropolitan area, operating buses, light rail, and commuter rail services.
-
E.
Portland Bureau of Transportation
The Portland Bureau of Transportation is the city agency responsible for planning, building, managing, and maintaining Portland, Oregon’s transportation infrastructure and 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: Sound Transit Board of Directors Target entity description: The Sound Transit Board of Directors is the policy-making and oversight body that directs planning, funding, and operation of the regional transit system serving the Seattle metropolitan area.
-
A.
Sound Transit
Sound Transit is the regional public transit agency that plans, builds, and operates light rail, commuter rail, and express bus services in the greater Puget Sound area of Washington State.
-
B.
TriMet Board of Directors
The TriMet Board of Directors is the policy-making and oversight body that directs the operations and strategic decisions of the Portland-area public transit agency TriMet.
-
C.
Sound Transit Link light rail
Sound Transit Link light rail is a regional rapid transit system serving Seattle and surrounding communities with frequent, high-capacity train service.
-
D.
Metro Transit
Metro Transit is the primary public transportation agency for the Minneapolis–Saint Paul metropolitan area, operating buses, light rail, and commuter rail services.
-
E.
Portland Bureau of Transportation
The Portland Bureau of Transportation is the city agency responsible for planning, building, managing, and maintaining Portland, Oregon’s transportation infrastructure and services.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
governing body
ⓘ
public transit board ⓘ |
| alsoKnownAs |
Sound Transit Board of Directors
ⓘ
surface form:
Sound Transit Board
|
| appliesToJurisdiction |
King County
ⓘ
surface form:
King County, Washington
Pierce County ⓘ
surface form:
Pierce County, Washington
Seattle metropolitan area ⓘ Snohomish County ⓘ
surface form:
Snohomish County, Washington
|
| appointedBy | local elected officials within the Sound Transit district ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasChairperson | Chair of the Sound Transit Board ⓘ |
| hasMember |
King County Executive
ⓘ
County Executive of Pierce County ⓘ
surface form:
Pierce County Executive
Snohomish County Executive ⓘ mayors from cities within the Sound Transit district ⓘ members of county councils within the Sound Transit district ⓘ |
| hasRole |
governing board for regional transit system
ⓘ
oversight body ⓘ policy-making body ⓘ |
| jurisdiction |
Sound Transit
ⓘ
surface form:
Sound Transit taxing district
|
| languageOfWorkOrName | English ⓘ |
| legalBasis | Revised Code of Washington ⓘ |
| locatedInTheAdministrativeTerritorialEntity |
Washington
ⓘ
surface form:
Washington (state)
|
| location |
Seattle, Washington, United States
ⓘ
surface form:
Seattle, Washington
|
| meetsAt |
Union Station (Seattle)
ⓘ
surface form:
Union Station, Seattle
|
| operatesInTimeZone | Pacific Time Zone ⓘ |
| oversees |
Sound Transit capital projects
ⓘ
Sound Transit long-range transit plans ⓘ Sound Transit operating budget ⓘ |
| parentOrganization | Sound Transit ⓘ |
| partOf | regional transit governance in Puget Sound region ⓘ |
| responsibleFor |
ST Express bus
ⓘ
surface form:
ST Express regional bus service
Sound Transit Link light rail ⓘ
surface form:
Sound Transit Link light rail system
Sounder commuter rail service ⓘ funding of regional transit system ⓘ operation oversight of regional transit system ⓘ planning of regional transit system ⓘ |
| sector | public transportation ⓘ |
| website | https://www.soundtransit.org/about/board ⓘ |
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: Sound Transit Board of Directors Description of subject: The Sound Transit Board of Directors is the policy-making and oversight body that directs planning, funding, and operation of the regional transit system serving the Seattle metropolitan area.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sound Transit Board
this entity surface form:
Sound Transit Board
subject surface form:
Sound Transit
this entity surface form:
Sound Transit Board
this entity surface form:
Sound Transit Board