Ichirō Ozawa
E111512
Ichirō Ozawa is a powerful and influential Japanese politician known for his behind-the-scenes kingmaker role and leadership in multiple parties that reshaped Japan’s postwar political landscape.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ichirō Ozawa canonical | 9 |
| Ichiro Ozawa | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T895342 — 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: Ichirō Ozawa Context triple: [Kakuei Tanaka, mentorOf, Ichirō Ozawa]
-
A.
Yukio Hatoyama
Yukio Hatoyama is a Japanese politician who served as Prime Minister of Japan from 2009 to 2010 and was a leading figure in the Democratic Party of Japan.
-
B.
Inejiro Asanuma
Inejiro Asanuma was a prominent Japanese socialist politician and pacifist who led the Japan Socialist Party until his high-profile assassination in 1960.
-
C.
Noboru Takeshita
Noboru Takeshita was a Japanese politician who served as Prime Minister in the late 1980s and was a key power broker within the Liberal Democratic Party.
-
D.
Jun’ya Koizumi
Jun’ya Koizumi is a Japanese politician and the son of former Prime Minister Junichiro Koizumi.
-
E.
Hirofumi Nakasone
Hirofumi Nakasone is a Japanese politician who has served in the House of Councillors and held cabinet posts including Minister for Foreign Affairs.
- 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: Ichirō Ozawa Target entity description: Ichirō Ozawa is a powerful and influential Japanese politician known for his behind-the-scenes kingmaker role and leadership in multiple parties that reshaped Japan’s postwar political landscape.
-
A.
Yukio Hatoyama
Yukio Hatoyama is a Japanese politician who served as Prime Minister of Japan from 2009 to 2010 and was a leading figure in the Democratic Party of Japan.
-
B.
Inejiro Asanuma
Inejiro Asanuma was a prominent Japanese socialist politician and pacifist who led the Japan Socialist Party until his high-profile assassination in 1960.
-
C.
Noboru Takeshita
Noboru Takeshita was a Japanese politician who served as Prime Minister in the late 1980s and was a key power broker within the Liberal Democratic Party.
-
D.
Jun’ya Koizumi
Jun’ya Koizumi is a Japanese politician and the son of former Prime Minister Junichiro Koizumi.
-
E.
Hirofumi Nakasone
Hirofumi Nakasone is a Japanese politician who has served in the House of Councillors and held cabinet posts including Minister for Foreign Affairs.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese politician
ⓘ
human ⓘ |
| activeIn | postwar Japanese politics ⓘ |
| authorOf |
Blueprint for a New Japan (Nihon Kaizō Keikaku)
ⓘ
surface form:
Blueprint for a New Japan
|
| birthDate | 1942-05-24 ⓘ |
| birthPlace |
Morioka, Japan
ⓘ
surface form:
Morioka, Iwate Prefecture, Japan
|
| countryOfCitizenship | Japan ⓘ |
| educatedAt | Keio University ⓘ |
| father | Saeki Ozawa ⓘ |
| fieldOfStudy | law ⓘ |
| gender | male ⓘ |
| hasHonorificPrefix | Mr. ⓘ |
| hasRole |
party leader
ⓘ
political strategist ⓘ |
| ideology |
conservative
ⓘ
reformist ⓘ |
| influenced | Democratic Party of Japan’s 2009 electoral strategy ⓘ |
| knownAs | shadow shogun ⓘ |
| languageSpoken | Japanese ⓘ |
| memberOfPoliticalParty |
Constitutional Democratic Party of Japan
ⓘ
Democratic Party for the People ⓘ Democratic Party (Japan) ⓘ
surface form:
Democratic Party of Japan
Liberal Democratic Party ⓘ Liberal Party (Japan, 1998) ⓘ Liberal Party (Japan, 1998) ⓘ
surface form:
Liberal Party (Japan, 2016)
New Frontier Party ⓘ People’s Life Party ⓘ |
| name | Ichirō Ozawa self-link ⓘ |
| nativeName | 小沢一郎 ⓘ |
| notableFor |
behind-the-scenes kingmaker role in Japanese politics
ⓘ
engineering party splits and mergers in Japan ⓘ influential role in realignment of Japan’s party system in the 1990s ⓘ |
| notableWork | Blueprint for a New Japan (Nihon Kaizō Keikaku) ⓘ |
| occupation | politician ⓘ |
| parliamentaryGroup |
House of Representatives of Japan
ⓘ
surface form:
House of Representatives, National Diet of Japan
|
| politicalAlignment | opposition strategist against long-term LDP rule ⓘ |
| positionHeld |
Member of the House of Representatives of Japan
ⓘ
President of the Democratic Party of Japan ⓘ President of the Liberal Party (Japan, 1998) ⓘ President of the Liberal Party (Japan, 2016) ⓘ President of the New Frontier Party ⓘ President of the People’s Life Party ⓘ Secretary-General of the Democratic Party of Japan ⓘ Secretary-General of the Liberal Democratic Party ⓘ |
| religion | Buddhism ⓘ |
| residence |
Tokyo
ⓘ
surface form:
Tokyo, Japan
|
| spouse | Kazuko Ozawa ⓘ |
| startPeriodOfActivity | 1969 ⓘ |
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: Ichirō Ozawa Description of subject: Ichirō Ozawa is a powerful and influential Japanese politician known for his behind-the-scenes kingmaker role and leadership in multiple parties that reshaped Japan’s postwar political landscape.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tanaka faction
this entity surface form:
Ichiro Ozawa
this entity surface form:
Ichiro Ozawa
this entity surface form:
Ichiro Ozawa