Okayama Castle
E720136
Okayama Castle is a historic Japanese castle in Okayama, famed for its black exterior, reconstructed keep, and scenic riverside setting opposite Kōraku-en Garden.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Okayama Castle canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T8037459 — 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: Okayama Castle Context triple: [Okayama, hasLandmark, Okayama Castle]
-
A.
Okazaki Castle
Okazaki Castle is a historic Japanese fortress in Aichi Prefecture, best known as the birthplace of shogun Tokugawa Ieyasu and a key stronghold in the Sengoku and early Edo periods.
-
B.
Koriyama Castle
Koriyama Castle is a historic Japanese castle in Nara Prefecture known for its Edo-period fortifications and scenic cherry blossoms.
-
C.
Nakatsu Castle
Nakatsu Castle is a historic Japanese castle in Nakatsu, Ōita Prefecture, known as one of Japan’s notable riverside fortresses with reconstructed structures and a museum.
-
D.
Wakayama Castle
Wakayama Castle is a historic Japanese hilltop fortress in the city of Wakayama, known for its reconstructed keep, surrounding park, and role as a former stronghold of the Tokugawa clan.
-
E.
Fukuchiyama Castle
Fukuchiyama Castle is a reconstructed Japanese hilltop castle in Fukuchiyama, Kyoto Prefecture, originally built in the late 16th century and noted for its historical architecture and panoramic views.
- 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: Okayama Castle Target entity description: Okayama Castle is a historic Japanese castle in Okayama, famed for its black exterior, reconstructed keep, and scenic riverside setting opposite Kōraku-en Garden.
-
A.
Okazaki Castle
Okazaki Castle is a historic Japanese fortress in Aichi Prefecture, best known as the birthplace of shogun Tokugawa Ieyasu and a key stronghold in the Sengoku and early Edo periods.
-
B.
Koriyama Castle
Koriyama Castle is a historic Japanese castle in Nara Prefecture known for its Edo-period fortifications and scenic cherry blossoms.
-
C.
Nakatsu Castle
Nakatsu Castle is a historic Japanese castle in Nakatsu, Ōita Prefecture, known as one of Japan’s notable riverside fortresses with reconstructed structures and a museum.
-
D.
Wakayama Castle
Wakayama Castle is a historic Japanese hilltop fortress in the city of Wakayama, known for its reconstructed keep, surrounding park, and role as a former stronghold of the Tokugawa clan.
-
E.
Fukuchiyama Castle
Fukuchiyama Castle is a reconstructed Japanese hilltop castle in Fukuchiyama, Kyoto Prefecture, originally built in the late 16th century and noted for its historical architecture and panoramic views.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese castle
ⓘ
hilltop castle ⓘ |
| alsoKnownAs |
Crow Castle
NERFINISHED
ⓘ
Okayama-jō NERFINISHED ⓘ |
| architecturalStyle | Japanese castle architecture ⓘ |
| builtBy | Ukita Naoie NERFINISHED ⓘ |
| completedBy | Ukita Hideie NERFINISHED ⓘ |
| constructionEnd | 1597 ⓘ |
| constructionStart | 1573 ⓘ |
| country | Japan ⓘ |
| destroyedBy | World War II air raids NERFINISHED ⓘ |
| destroyedIn | 1945 ⓘ |
| exteriorColor | black ⓘ |
| function |
museum
ⓘ
tourist attraction ⓘ |
| hasBasementLevels | 1 ⓘ |
| hasFeature | golden shachihoko ornaments ⓘ |
| hasFloorCount | 6 ⓘ |
| hasJapaneseName | 岡山城 NERFINISHED ⓘ |
| hasNickname |
Karasu-jō
NERFINISHED
ⓘ
U-jō NERFINISHED ⓘ |
| hasStructure |
moats
ⓘ
stone walls ⓘ tenshu (main keep) ⓘ turrets ⓘ |
| hasViewOf |
Asahi River
NERFINISHED
ⓘ
Kōraku-en Garden NERFINISHED ⓘ |
| heritageStatus | designated historic site by Okayama City ⓘ |
| knownFor |
black exterior
ⓘ
reconstructed keep ⓘ scenic riverside setting ⓘ |
| laterOwner |
Ikeda clan
NERFINISHED
ⓘ
Kobayakawa clan NERFINISHED ⓘ |
| locatedIn |
Chūgoku region
NERFINISHED
ⓘ
Okayama City NERFINISHED ⓘ Okayama Prefecture NERFINISHED ⓘ |
| locatedOn | Asahi River NERFINISHED ⓘ |
| locatedOpposite | Kōraku-en Garden NERFINISHED ⓘ |
| mainKeepReconstructedIn | 1966 ⓘ |
| nearbyTransport | Okayama Station NERFINISHED ⓘ |
| openToPublic | true ⓘ |
| originalOwner | Ukita clan NERFINISHED ⓘ |
| period | Azuchi–Momoyama period NERFINISHED ⓘ |
| reconstructionMaterial | reinforced concrete ⓘ |
| regionOfCulturalSignificance | San'yō region NERFINISHED ⓘ |
| roofStyle | traditional Japanese ⓘ |
| tourismCategory | Japanese castles open to the public ⓘ |
| wasSeatOf | Okayama Domain NERFINISHED ⓘ |
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: Okayama Castle Description of subject: Okayama Castle is a historic Japanese castle in Okayama, famed for its black exterior, reconstructed keep, and scenic riverside setting opposite Kōraku-en Garden.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.