Osaka Castle
E4489
Osaka Castle is a historic Japanese fortress in Osaka, renowned for its grand architecture, surrounding park, and major role in Japan’s feudal history.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Osaka Castle canonical | 25 |
| Osaka Castle Park | 2 |
| Osaka Castle complex | 1 |
| Osaka Castle main keep | 1 |
| Osaka Castle tenshu (main tower) | 1 |
| Ōsaka-jō | 1 |
| 大阪城 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T24448 — 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: Osaka Castle Context triple: [Osaka, hasLandmark, Osaka Castle]
-
A.
Osaka
Osaka is Japan's third-largest city and a major economic, cultural, and historical hub known for its vibrant street food, bustling nightlife, and role as a commercial center in the Kansai region.
-
B.
aquarium Kaiyukan
Aquarium Kaiyukan is one of the world’s largest and most famous public aquariums, renowned for its massive Pacific Ocean tank and immersive marine life exhibits in Osaka, Japan.
-
C.
Osaka Prefecture
Osaka Prefecture is a populous and economically vital region in Japan’s Kansai area, centered on the city of Osaka and known as a major hub of commerce, industry, and culture.
-
D.
Palace of Fine Arts
The Palace of Fine Arts is a monumental Beaux-Arts structure in San Francisco originally built for the 1915 Panama–Pacific International Exposition and now a popular cultural and scenic landmark.
-
E.
Kimigayo
Kimigayo is the national anthem of Japan, known for its extremely short length and lyrics derived from a Heian-period waka poem expressing wishes for the emperor’s enduring reign.
- 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: Osaka Castle Target entity description: Osaka Castle is a historic Japanese fortress in Osaka, renowned for its grand architecture, surrounding park, and major role in Japan’s feudal history.
-
A.
Osaka
Osaka is Japan's third-largest city and a major economic, cultural, and historical hub known for its vibrant street food, bustling nightlife, and role as a commercial center in the Kansai region.
-
B.
aquarium Kaiyukan
Aquarium Kaiyukan is one of the world’s largest and most famous public aquariums, renowned for its massive Pacific Ocean tank and immersive marine life exhibits in Osaka, Japan.
-
C.
Osaka Prefecture
Osaka Prefecture is a populous and economically vital region in Japan’s Kansai area, centered on the city of Osaka and known as a major hub of commerce, industry, and culture.
-
D.
Palace of Fine Arts
The Palace of Fine Arts is a monumental Beaux-Arts structure in San Francisco originally built for the 1915 Panama–Pacific International Exposition and now a popular cultural and scenic landmark.
-
E.
Kimigayo
Kimigayo is the national anthem of Japan, known for its extremely short length and lyrics derived from a Heian-period waka poem expressing wishes for the emperor’s enduring reign.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese castle
ⓘ
historical landmark ⓘ tourist attraction ⓘ |
| architecturalStyle | Japanese castle architecture ⓘ |
| builtBy | Toyotomi Hideyoshi ⓘ |
| constructionStart | 1583 ⓘ |
| country | Japan ⓘ |
| currentMainKeepCompletedIn | 1931 ⓘ |
| currentMainKeepMaterial | reinforced concrete ⓘ |
| governedBy |
Osaka
ⓘ
surface form:
Osaka City
|
| hasAccessibility | accessible by Osaka Metro ⓘ |
| hasDesignation | Important cultural and historical site of Osaka ⓘ |
| hasFeature |
gates
ⓘ
golden ornamentation ⓘ main keep ⓘ moat ⓘ museum ⓘ observation deck ⓘ stone walls ⓘ turrets ⓘ |
| hasFunction |
cultural venue
ⓘ
historical museum ⓘ viewing platform ⓘ |
| hasNativeName |
Osaka Castle
self-linksurface differs
ⓘ
surface form:
大阪城
|
| hasNearbyAttraction |
Nishinomaru Garden
ⓘ
Osaka Museum of History ⓘ |
| hasRenovation | major restoration in late 20th century ⓘ |
| hasRoleIn |
Sengoku period history
ⓘ
Siege of Osaka ⓘ unification of Japan ⓘ |
| hasRomanizedName |
Osaka Castle
self-linksurface differs
ⓘ
surface form:
Ōsaka-jō
|
| hasSeasonalEvent |
autumn foliage viewing
ⓘ
cherry blossom viewing ⓘ |
| isFamousFor |
cherry blossoms
ⓘ
feudal-era history ⓘ grand architecture ⓘ panoramic views of Osaka ⓘ |
| isTouristDestinationFor |
domestic tourists
ⓘ
international tourists ⓘ |
| locatedIn |
Honshu
ⓘ
Kansai region ⓘ Osaka ⓘ Osaka Castle self-linksurface differs ⓘ
surface form:
Osaka Castle Park
Osaka Prefecture ⓘ |
| nearStation | Osakajokoen Station ⓘ |
| surroundedBy |
Osaka Castle
self-linksurface differs
ⓘ
surface form:
Osaka Castle Park
|
| wasDestroyedIn |
Siege of Osaka
ⓘ
surface form:
Summer Siege of Osaka
|
| wasRebuiltBy |
Edo period
ⓘ
surface form:
Tokugawa shogunate
|
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: Osaka Castle Description of subject: Osaka Castle is a historic Japanese fortress in Osaka, renowned for its grand architecture, surrounding park, and major role in Japan’s feudal history.
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Osaka Castle Park
this entity surface form:
大阪城
this entity surface form:
Ōsaka-jō
this entity surface form:
Osaka Castle Park
this entity surface form:
Osaka Castle complex
this entity surface form:
Osaka Castle tenshu (main tower)
this entity surface form:
Osaka Castle main keep
subject surface form:
Osaka-jō
subject surface form:
Osaka
subject surface form:
Kansai