Seattle Center Monorail
E175617
The Seattle Center Monorail is an elevated rapid transit line in Seattle that connects downtown to the Seattle Center, originally built for the 1962 World's Fair and now operating as a short but iconic urban transit link and tourist attraction.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T1545161 — 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: Seattle Center Monorail Context triple: [Seattle Center, servedBy, Seattle Center Monorail]
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A.
Disneyland Monorail System
The Disneyland Monorail System is an elevated monorail transportation system at Disneyland Resort in Anaheim, California, notable as the first daily operating monorail in the Western Hemisphere and an iconic part of the park’s futuristic theme.
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B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
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C.
Walt Disney World Monorail System
The Walt Disney World Monorail System is an elevated, electrically powered train network that transports guests between major areas of the Walt Disney World Resort in Florida.
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D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
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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
- 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: Seattle Center Monorail Target entity description: The Seattle Center Monorail is an elevated rapid transit line in Seattle that connects downtown to the Seattle Center, originally built for the 1962 World's Fair and now operating as a short but iconic urban transit link and tourist attraction.
-
A.
Disneyland Monorail System
The Disneyland Monorail System is an elevated monorail transportation system at Disneyland Resort in Anaheim, California, notable as the first daily operating monorail in the Western Hemisphere and an iconic part of the park’s futuristic theme.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
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C.
Walt Disney World Monorail System
The Walt Disney World Monorail System is an elevated, electrically powered train network that transports guests between major areas of the Walt Disney World Resort in Florida.
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D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
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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 (45)
| Predicate | Object |
|---|---|
| instanceOf |
elevated railway
ⓘ
monorail transit line ⓘ public transport system ⓘ tourist attraction ⓘ |
| associatedWith |
Seattle Center
ⓘ
Westlake Center ⓘ |
| builtFor | World’s Fair visitors ⓘ |
| category |
Monorails in the United States
ⓘ
Transport in Seattle ⓘ World’s fair infrastructure ⓘ |
| city | Seattle ⓘ |
| connects |
downtown Seattle
ⓘ
surface form:
Downtown Seattle
Seattle Center ⓘ |
| constructionStart | early 1960s ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | electric-powered ⓘ |
| elevation | elevated above street level ⓘ |
| fareSystem | separate from King County Metro ⓘ |
| heritageStatus | historic transportation system ⓘ |
| lineCharacter | fully elevated ⓘ |
| lineLength | approximately 1 mile ⓘ |
| locatedIn |
Seattle
ⓘ
United States of America ⓘ
surface form:
United States
Washington ⓘ |
| notableFeature |
direct connection to Seattle Center attractions
ⓘ
iconic view of Seattle skyline ⓘ |
| notPartOf |
Sound Transit Link light rail
ⓘ
surface form:
Sound Transit Link light rail system
|
| numberOfStations | 2 ⓘ |
| numberOfTracks | 2 ⓘ |
| openedFor |
1962 World’s Fair
ⓘ
surface form:
1962 Seattle World’s Fair
Century 21 Exposition ⓘ |
| openingDate | 1962 ⓘ |
| operator | Seattle Monorail Services ⓘ |
| owner |
Seattle, Washington, United States
ⓘ
surface form:
City of Seattle
|
| primaryUse |
tourism
ⓘ
urban transit ⓘ |
| regionServed |
Belltown
ⓘ
surface form:
Belltown area
Queen Anne neighborhood ⓘ
surface form:
Uptown/Lower Queen Anne area
|
| serviceType | shuttle service ⓘ |
| significance | one of the earliest full-scale commercial monorails in the United States ⓘ |
| status | operational ⓘ |
| terminus |
Seattle Center station
ⓘ
Westlake Center station ⓘ |
| trackGauge | monorail beam ⓘ |
| travelTime | a few minutes between termini ⓘ |
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: Seattle Center Monorail Description of subject: The Seattle Center Monorail is an elevated rapid transit line in Seattle that connects downtown to the Seattle Center, originally built for the 1962 World's Fair and now operating as a short but iconic urban transit link and tourist attraction.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Seattle Center Monorail line
this entity surface form:
Seattle Center Monorail (nearby)
this entity surface form:
Monorail at the 1962 Seattle World’s Fair
this entity surface form:
Monorail in Seattle
this entity surface form:
Seattle Monorail
this entity surface form:
Seattle Center Monorail (via Westlake)
subject surface form:
King County Metro