Katsuya Okada
E496293
Katsuya Okada is a Japanese politician who has served as leader of the Democratic Party of Japan and as Deputy Prime Minister.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Katsuya Okada canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2802021 — 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: Katsuya Okada Context triple: [Hosei University, hasAlumni, Katsuya Okada]
-
A.
Akinobu Okada
Akinobu Okada is a former Japanese professional baseball infielder and manager best known for his long association with Nippon Professional Baseball and leadership roles with the Hanshin Tigers.
-
B.
Naoki Tanaka
Naoki Tanaka is a Japanese politician and businessman known as the son of former Prime Minister Kakuei Tanaka and a member of the influential Tanaka political family.
-
C.
Yoshinori Sakai
Yoshinori Sakai was a Japanese track athlete symbolically chosen to light the cauldron at the 1964 Tokyo Olympics because he was born in Hiroshima on the day the atomic bomb was dropped.
-
D.
Tatsuhiko Kawashima
Tatsuhiko Kawashima is a Japanese academic and former professor best known as the father of Princess Kiko of the Japanese Imperial Family.
-
E.
Masahiro Hirakubo
Masahiro Hirakubo is a Japanese film editor best known for his work on acclaimed films such as "Trainspotting" and "The Beach."
- 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: Katsuya Okada Target entity description: Katsuya Okada is a Japanese politician who has served as leader of the Democratic Party of Japan and as Deputy Prime Minister.
-
A.
Akinobu Okada
Akinobu Okada is a former Japanese professional baseball infielder and manager best known for his long association with Nippon Professional Baseball and leadership roles with the Hanshin Tigers.
-
B.
Naoki Tanaka
Naoki Tanaka is a Japanese politician and businessman known as the son of former Prime Minister Kakuei Tanaka and a member of the influential Tanaka political family.
-
C.
Yoshinori Sakai
Yoshinori Sakai was a Japanese track athlete symbolically chosen to light the cauldron at the 1964 Tokyo Olympics because he was born in Hiroshima on the day the atomic bomb was dropped.
-
D.
Tatsuhiko Kawashima
Tatsuhiko Kawashima is a Japanese academic and former professor best known as the father of Princess Kiko of the Japanese Imperial Family.
-
E.
Masahiro Hirakubo
Masahiro Hirakubo is a Japanese film editor best known for his work on acclaimed films such as "Trainspotting" and "The Beach."
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese politician
ⓘ
human ⓘ |
| countryOfCitizenship | Japan ⓘ |
| dateOfBirth | 1953-07-14 ⓘ |
| educatedAt |
Harvard University
ⓘ
Matsusaka High School ⓘ University of Tokyo ⓘ |
| electoralDistrict | Mie 3rd district ⓘ |
| employer | Ministry of International Trade and Industry (Japan) ⓘ |
| familyName | Okada ⓘ |
| father | Tatsuoki Okada ⓘ |
| givenName | Katsuya ⓘ |
| hasChild |
one daughter
ⓘ
one son ⓘ |
| languageSpoken | Japanese ⓘ |
| legislativeBody | House of Representatives of Japan ⓘ |
| memberOfPoliticalParty |
Democratic Party of Japan
ⓘ
linked to:
Democratic Party (Japan)
Liberal Democratic Party of Japan ⓘ
linked to:
Liberal Democratic Party
New Frontier Party (Japan) ⓘ |
| name | Katsuya Okada ⓘ |
| nativeName | 岡田克也 ⓘ |
| notableWork |
leadership of the Democratic Party of Japan
ⓘ
role in the Hatoyama and Noda cabinets ⓘ |
| occupation | politician ⓘ |
| officeEndTime |
as Deputy Prime Minister of Japan: 2012-12-26
ⓘ
as Minister for Foreign Affairs of Japan: 2011-03-09 ⓘ as President of the Democratic Party (Japan, 2016): 2017-09-01 ⓘ as President of the Democratic Party of Japan: 2005-09-12 ⓘ as President of the Democratic Party of Japan: 2016-03-27 ⓘ |
| officeStartTime |
as Deputy Prime Minister of Japan: 2012-01-13
ⓘ
as Minister for Foreign Affairs of Japan: 2009-09-16 ⓘ as President of the Democratic Party (Japan, 2016): 2016-03-27 ⓘ as President of the Democratic Party of Japan: 2004-05-18 ⓘ as President of the Democratic Party of Japan: 2015-01-18 ⓘ |
| placeOfBirth | Yokkaichi, Mie Prefecture, Japan ⓘ |
| positionHeld |
Deputy Prime Minister of Japan
ⓘ
Member of the House of Representatives of Japan ⓘ Minister for Foreign Affairs of Japan ⓘ Minister of Agriculture, Forestry and Fisheries of Japan ⓘ Minister of Economy, Trade and Industry of Japan ⓘ President of the Democratic Party (Japan, 2016) ⓘ President of the Democratic Party of Japan ⓘ Secretary-General of the Democratic Party of Japan ⓘ |
| religion | Buddhism ⓘ |
| residence | Japan ⓘ |
| sexOrGender | male ⓘ |
| sibling | Toshio Okada ⓘ |
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: Katsuya Okada Description of subject: Katsuya Okada is a Japanese politician who has served as leader of the Democratic Party of Japan and as Deputy Prime Minister.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.