Aquapolis floating city
E299503
Aquapolis floating city was a pioneering experimental marine city and futuristic floating structure showcased as a centerpiece of Expo '75 in Okinawa, Japan.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Aquapolis floating city canonical | 2 |
| Marine City (floating city) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2797603 — 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: Aquapolis floating city Context triple: [Expo '75, mainAttraction, Aquapolis floating city]
-
A.
Hydropolis
Hydropolis is an interactive science center and exhibition space in Wrocław, Poland, dedicated to exploring water from scientific, environmental, and cultural perspectives.
-
B.
Sunken Palace
The Sunken Palace is a vast underground Byzantine-era cistern in Istanbul, famed for its forest of marble columns and atmospheric, water-filled chambers.
-
C.
Grande Nef
Grande Nef is the main, large-scale exhibition hall of the Centre Pompidou-Metz, designed to host major contemporary art and cultural installations.
-
D.
Atlantis
Atlantis is a legendary, highly advanced island civilization from ancient Greek mythology, said to have sunk into the sea as a result of divine punishment.
-
E.
Atlantis
Atlantis is a retired NASA Space Shuttle orbiter that flew numerous missions for the United States space program between 1985 and 2011.
- 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: Aquapolis floating city Target entity description: Aquapolis floating city was a pioneering experimental marine city and futuristic floating structure showcased as a centerpiece of Expo '75 in Okinawa, Japan.
-
A.
Hydropolis
Hydropolis is an interactive science center and exhibition space in Wrocław, Poland, dedicated to exploring water from scientific, environmental, and cultural perspectives.
-
B.
Sunken Palace
The Sunken Palace is a vast underground Byzantine-era cistern in Istanbul, famed for its forest of marble columns and atmospheric, water-filled chambers.
-
C.
Grande Nef
Grande Nef is the main, large-scale exhibition hall of the Centre Pompidou-Metz, designed to host major contemporary art and cultural installations.
-
D.
Atlantis
Atlantis is a legendary, highly advanced island civilization from ancient Greek mythology, said to have sunk into the sea as a result of divine punishment.
-
E.
Atlantis
Atlantis is a retired NASA Space Shuttle orbiter that flew numerous missions for the United States space program between 1985 and 2011.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Expo pavilion
ⓘ
experimental marine city ⓘ floating structure ⓘ |
| associatedWith | Metabolism (architecture) ⓘ |
| category |
Buildings and structures in Okinawa Prefecture
ⓘ
Floating cities ⓘ World's fair architecture ⓘ |
| completionYear | 1975 ⓘ |
| constructionSite |
Hiroshima Prefecture
ⓘ
surface form:
Hiroshima Prefecture, Japan
|
| country | Japan ⓘ |
| demolished | true ⓘ |
| demolitionYear | 2000 ⓘ |
| designedBy | Kiyonori Kikutake ⓘ |
| displacement | approximately 10,000 tons ⓘ |
| exhibition | Expo '75 ⓘ |
| expoCity | Okinawa City ⓘ |
| expoTheme | The Sea We Would Like to See ⓘ |
| feature |
exhibition spaces
ⓘ
floating platform ⓘ observation decks ⓘ underwater viewing areas ⓘ |
| floors | 3 ⓘ |
| hasJapaneseName | アクアポリス ⓘ |
| height | 32 meters ⓘ |
| inspiredBy | metabolist architecture movement ⓘ |
| languageOfName | English ⓘ |
| length | 100 meters ⓘ |
| location |
Okinawa Prefecture
ⓘ
surface form:
Okinawa
|
| material | steel ⓘ |
| name | Aquapolis ⓘ |
| notableFor |
being one of the first large-scale floating city prototypes
ⓘ
pioneering experimental marine urbanism ⓘ |
| openingDate | 1975-07-20 ⓘ |
| ownerDuringExpo | Expo '75 organizers ⓘ |
| postExpoLocation |
Motobu, Okinawa, Japan
ⓘ
surface form:
Motobu, Okinawa
|
| postExpoUse | tourist attraction ⓘ |
| purpose |
to demonstrate possibilities of ocean habitation
ⓘ
to showcase futuristic marine architecture ⓘ |
| reasonForDemolition |
declining visitor numbers
ⓘ
high maintenance costs ⓘ |
| roleAtExpo | centerpiece pavilion ⓘ |
| structuralSystem | steel floating structure ⓘ |
| theme | marine city of the future ⓘ |
| transportMethod | towed by sea to Okinawa ⓘ |
| width | 30 meters ⓘ |
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: Aquapolis floating city Description of subject: Aquapolis floating city was a pioneering experimental marine city and futuristic floating structure showcased as a centerpiece of Expo '75 in Okinawa, Japan.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
International Ocean Exposition, Okinawa, Japan, 1975
→
notableAttraction
→
Aquapolis floating city
ⓘ
this entity surface form:
Marine City (floating city)