Expo Tower
E252321
Expo Tower is an observation tower built as a landmark structure for the Expo ’70 world’s fair in Osaka, Japan.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Expo Tower canonical | 2 |
| Expo Tower (Expo ’70, Osaka) | 2 |
| Expo Tower (Osaka) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2284993 — 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: Expo Tower Context triple: [Expo ’70, hasPavilion, Expo Tower]
-
A.
Yokohama Landmark Tower
Yokohama Landmark Tower is a prominent skyscraper in Yokohama, Japan, known for its height, office and hotel facilities, and observation deck offering panoramic city and bay views.
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B.
Yokohama Marine Tower
Yokohama Marine Tower is a prominent coastal observation tower and tourist attraction in Yokohama, Japan, offering panoramic views of the city and its harbor.
-
C.
Tokyo Skytree
Tokyo Skytree is a broadcasting and observation tower in Tokyo and one of the tallest structures in the world, known for its panoramic city views and distinctive futuristic design.
-
D.
Tokyo Tower
Tokyo Tower is a landmark red-and-white communications and observation tower in central Tokyo, famous for its city views and Eiffel Tower-inspired design.
-
E.
Abeno Harukas
Abeno Harukas is a 300-meter-tall skyscraper in Osaka, Japan, known as one of the country's tallest buildings and a major commercial, cultural, and observation complex.
- 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: Expo Tower Target entity description: Expo Tower is an observation tower built as a landmark structure for the Expo ’70 world’s fair in Osaka, Japan.
-
A.
Yokohama Landmark Tower
Yokohama Landmark Tower is a prominent skyscraper in Yokohama, Japan, known for its height, office and hotel facilities, and observation deck offering panoramic city and bay views.
-
B.
Yokohama Marine Tower
Yokohama Marine Tower is a prominent coastal observation tower and tourist attraction in Yokohama, Japan, offering panoramic views of the city and its harbor.
-
C.
Tokyo Skytree
Tokyo Skytree is a broadcasting and observation tower in Tokyo and one of the tallest structures in the world, known for its panoramic city views and distinctive futuristic design.
-
D.
Tokyo Tower
Tokyo Tower is a landmark red-and-white communications and observation tower in central Tokyo, famous for its city views and Eiffel Tower-inspired design.
-
E.
Abeno Harukas
Abeno Harukas is a 300-meter-tall skyscraper in Osaka, Japan, known as one of the country's tallest buildings and a major commercial, cultural, and observation complex.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Expo '70 pavilion
ⓘ
landmark structure ⓘ observation tower ⓘ |
| alsoKnownAs |
Expo Tower (Osaka)
ⓘ
linked to:
Expo Tower
|
| architecturalStyle | modernist ⓘ |
| builtFor |
Expo '70 world’s fair
ⓘ
linked to:
Expo ’70
|
| category |
Buildings and structures in Osaka Prefecture
ⓘ
Towers in Japan ⓘ World's fair architecture ⓘ |
| city | Osaka ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| demolitionDate | 1990s ⓘ |
| event |
Expo '70
ⓘ
linked to:
Expo ’70
|
| hasFunction |
broadcasting tower
ⓘ
observation deck ⓘ |
| hasLandmarkRole | symbol of Expo '70 site ⓘ |
| hasObservationDeck | yes ⓘ |
| height | 127 meters ⓘ |
| locatedIn |
Expo '70 Commemorative Park
ⓘ
linked to:
Expo ’70 Commemorative Park
Suita, Osaka Prefecture, Japan ⓘ
linked to:
Suita, Osaka
|
| locatedNear |
Osaka Monorail Expo '70 Commemorative Park Station
ⓘ
linked to:
Osaka Monorail
|
| material | steel ⓘ |
| openingDate | 1970 ⓘ |
| purpose |
observation
ⓘ
symbol of Expo '70 ⓘ |
| region |
Kansai
ⓘ
linked to:
Kansai region
|
| status | demolished ⓘ |
| usedDuring |
Expo '70 international exposition
ⓘ
linked to:
Expo ’70
|
| yearCompleted | 1970 ⓘ |
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: Expo Tower Description of subject: Expo Tower is an observation tower built as a landmark structure for the Expo ’70 world’s fair in Osaka, Japan.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Expo Tower
linked to: Expo Tower
linked to: Expo Tower