Seafair hydroplane races
E132464
The Seafair hydroplane races are an annual high-speed powerboat racing event held in Seattle as part of the city’s Seafair summer festival.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Seafair Cup | 2 |
| Seafair | 1 |
| Seafair Festival organization | 1 |
| Seafair hydroplane races canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1154874 — 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: Seafair hydroplane races Context triple: [Lake Washington, hasEvent, Seafair hydroplane races]
-
A.
Bonneville Speed Week
Bonneville Speed Week is an annual land-speed racing event where drivers attempt record-breaking runs on the salt flats near Wendover, Utah.
-
B.
Harborfest
Harborfest is a major annual maritime and music festival in Norfolk, Virginia, featuring tall ships, live entertainment, and waterfront celebrations.
-
C.
Head of the Charles Regatta
The Head of the Charles Regatta is one of the world’s largest and most prestigious annual rowing races, attracting thousands of competitors and spectators to Boston and Cambridge each October.
-
D.
Pensacola Beach Air Show
The Pensacola Beach Air Show is an annual aerial demonstration event held over the Gulf of Mexico, best known for featuring performances by the U.S. Navy Blue Angels.
-
E.
Bumbershoot Festival
Bumbershoot Festival is a long-running annual arts and music festival in Seattle featuring a wide range of performances, including live music, comedy, theater, film, and visual arts.
- 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: Seafair hydroplane races Target entity description: The Seafair hydroplane races are an annual high-speed powerboat racing event held in Seattle as part of the city’s Seafair summer festival.
-
A.
Bonneville Speed Week
Bonneville Speed Week is an annual land-speed racing event where drivers attempt record-breaking runs on the salt flats near Wendover, Utah.
-
B.
Harborfest
Harborfest is a major annual maritime and music festival in Norfolk, Virginia, featuring tall ships, live entertainment, and waterfront celebrations.
-
C.
Head of the Charles Regatta
The Head of the Charles Regatta is one of the world’s largest and most prestigious annual rowing races, attracting thousands of competitors and spectators to Boston and Cambridge each October.
-
D.
Pensacola Beach Air Show
The Pensacola Beach Air Show is an annual aerial demonstration event held over the Gulf of Mexico, best known for featuring performances by the U.S. Navy Blue Angels.
-
E.
Bumbershoot Festival
Bumbershoot Festival is a long-running annual arts and music festival in Seattle featuring a wide range of performances, including live music, comedy, theater, film, and visual arts.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
annual sporting event
ⓘ
hydroplane race ⓘ powerboat racing event ⓘ |
| alsoKnownAs |
Seafair Cup
ⓘ
linked to:
Seafair hydroplane races
Seafair hydroplane races on Lake Washington ⓘ |
| associatedEvent |
Blue Angels air demonstration
ⓘ
Seafair Air Show ⓘ |
| audienceSize | tens of thousands of spectators ⓘ |
| category |
Annual events in Seattle
ⓘ
Motorsport in Seattle ⓘ Powerboat racing competitions ⓘ Tourist attractions in Seattle ⓘ |
| city | Seattle ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| courseType | closed-circuit water course ⓘ |
| economicImpact | tourism revenue for Seattle ⓘ |
| feature |
high-speed powerboats
ⓘ
unlimited hydroplane competition ⓘ |
| frequency | annual ⓘ |
| heldDuring | summer ⓘ |
| inception | 1951 ⓘ |
| location |
Seattle, Washington
ⓘ
linked to:
Seattle, Washington, United States
|
| mainVenue | Lake Washington ⓘ |
| mediaCoverage |
local television
ⓘ
regional news outlets ⓘ |
| notableClass | Unlimited hydroplane ⓘ |
| organizer |
Seafair Festival organization
ⓘ
linked to:
Seafair hydroplane races
|
| partOf |
Seafair
ⓘ
linked to:
Seafair hydroplane races
Seafair summer festival ⓘ |
| relatedFestivalElement |
Seafair Torchlight Parade
ⓘ
Seafair community events ⓘ |
| relatedTo |
Gold Cup hydroplane race
ⓘ
H1 Unlimited series ⓘ
linked to:
H1 Unlimited
|
| safetyMeasures |
on-water rescue teams
ⓘ
restricted spectator zones ⓘ |
| sanctioningBody | H1 Unlimited ⓘ |
| significance |
major event of Seafair festival
ⓘ
one of the most prominent hydroplane races in the United States ⓘ |
| spectatorType |
log boom boat spectators
ⓘ
shoreline spectators ⓘ |
| sport | hydroplane racing ⓘ |
| state | Washington ⓘ |
| surface | water ⓘ |
| typicalMonthHeld | August ⓘ |
| typicalRaceDistance | multiple-lap circuit on Lake Washington ⓘ |
| waterBody | Lake Washington ⓘ |
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: Seafair hydroplane races Description of subject: The Seafair hydroplane races are an annual high-speed powerboat racing event held in Seattle as part of the city’s Seafair summer festival.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Seafair hydroplane races
linked to: Seafair hydroplane races
linked to: Seafair hydroplane races
linked to: Seafair hydroplane races