Tacoma Link light rail
E504736
Tacoma Link light rail is a streetcar-style light rail line in Tacoma, Washington, providing frequent local transit service through the city’s downtown and nearby districts.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Tacoma Link light rail canonical | 6 |
| Hilltop Tacoma Link Extension | 2 |
| T Line (Tacoma Link) light rail | 1 |
| Tacoma Link | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5244593 — 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: Tacoma Link light rail Context triple: [Washington State History Museum, hasPublicTransitConnection, Tacoma Link light rail]
-
A.
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.
-
B.
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.
-
C.
LYNX light rail system
The LYNX light rail system is Charlotte, North Carolina’s urban rail transit network, providing electric passenger service along key corridors such as the Blue Line.
-
D.
Downtown Seattle Transit Tunnel
The Downtown Seattle Transit Tunnel is a former dual-use bus and light rail tunnel running beneath central Seattle that served as a major rapid transit corridor through the city’s downtown.
-
E.
Transbay Tube
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
- 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: Tacoma Link light rail Target entity description: Tacoma Link light rail is a streetcar-style light rail line in Tacoma, Washington, providing frequent local transit service through the city’s downtown and nearby districts.
-
A.
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.
-
B.
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.
-
C.
LYNX light rail system
The LYNX light rail system is Charlotte, North Carolina’s urban rail transit network, providing electric passenger service along key corridors such as the Blue Line.
-
D.
Downtown Seattle Transit Tunnel
The Downtown Seattle Transit Tunnel is a former dual-use bus and light rail tunnel running beneath central Seattle that served as a major rapid transit corridor through the city’s downtown.
-
E.
Transbay Tube
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line
ⓘ
public transit service ⓘ streetcar system ⓘ |
| accessibility |
ADA-accessible stations
ⓘ
ADA-accessible vehicles ⓘ |
| alsoKnownAs | T Line ⓘ |
| connectsTo |
Tacoma Convention Center area
ⓘ
linked to:
Greater Tacoma Convention Center
Tacoma government and civic buildings ⓘ Tacoma medical and hospital district near Hilltop ⓘ |
| connectsWith |
Sounder commuter rail at Tacoma Dome Station
ⓘ
regional and local bus services at Tacoma Dome Station ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead catenary ⓘ |
| environmentalBenefit | reduced automobile dependence in downtown Tacoma ⓘ |
| extension | Hilltop extension ⓘ |
| fareMedium | ORCA card accepted ⓘ |
| farePolicy | originally free to ride ⓘ |
| fareSystem | integrated with Sound Transit fare system ⓘ |
| fundingSource | regional transit taxes ⓘ |
| infrastructureType |
reserved right-of-way segments
ⓘ
street-running tracks ⓘ |
| locatedIn |
Pierce County, Washington
ⓘ
linked to:
Pierce County
Tacoma, Washington ⓘ Washington (state) ⓘ
linked to:
Washington
|
| mode | rail transit ⓘ |
| openingDate | 2003 ⓘ |
| operator | Sound Transit ⓘ |
| owner | Sound Transit ⓘ |
| partOf |
Sound Transit Link light rail network
ⓘ
linked to:
Sound Transit Link light rail
|
| peakUsage | commuters and downtown visitors ⓘ |
| planningAuthority |
Sound Transit Board
ⓘ
linked to:
Sound Transit Board of Directors
|
| primaryFunction | downtown circulator ⓘ |
| region | Puget Sound region ⓘ |
| rollingStockType | low-floor streetcar vehicles ⓘ |
| servesArea |
Downtown Tacoma
ⓘ
linked to:
downtown Tacoma
Hilltop neighborhood, Tacoma ⓘ Stadium District, Tacoma ⓘ
linked to:
Stadium District (Tacoma)
Tacoma Dome District ⓘ
linked to:
Tacoma Dome Station
Theater District, Tacoma ⓘ
linked to:
downtown Tacoma
|
| serviceAreaType | urban core ⓘ |
| serviceFrequency | frequent all-day service ⓘ |
| servicePattern | frequent local transit service ⓘ |
| terminus |
Hilltop neighborhood, Tacoma
ⓘ
linked to:
Hilltop neighborhood (Tacoma)
Tacoma Dome Station ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | light rail ⓘ |
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: Tacoma Link light rail Description of subject: Tacoma Link light rail is a streetcar-style light rail line in Tacoma, Washington, providing frequent local transit service through the city’s downtown and nearby districts.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
ST
linked to: Tacoma Link light rail
subject linked to:
downtown Tacoma
linked to: Tacoma Link light rail
Transportation in Pierce County, Washington
→
hasLightRailService
→
T Line (Tacoma Link) light rail
ⓘ
linked to: Tacoma Link light rail
linked to: Tacoma Link light rail