Junichiro Koizumi
E12644
Junichiro Koizumi is a reformist Japanese politician who served as Prime Minister from 2001 to 2006, known for his charismatic style and efforts to privatize Japan’s postal system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Junichiro Koizumi canonical | 24 |
| 小泉純一郎 | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T51736 — 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: Junichiro Koizumi Context triple: [Liberal Democratic Party, notableLeader, Junichiro Koizumi]
-
A.
Yasuhiro Nakasone
Yasuhiro Nakasone was a prominent Japanese statesman who served as Prime Minister in the 1980s and was known for his efforts to strengthen Japan’s international profile and pursue administrative and educational reforms.
-
B.
Yoshihide Suga
Yoshihide Suga is a Japanese politician who served as Prime Minister of Japan from 2020 to 2021, succeeding Shinzo Abe and leading the country through the early phase of the COVID-19 pandemic.
-
C.
Fumio Kishida
Fumio Kishida is a Japanese politician and leader of the Liberal Democratic Party who serves as the Prime Minister of Japan.
-
D.
Eisaku Satō
Eisaku Satō was a Japanese politician who served as Prime Minister and Nobel Peace Prize laureate, known for his leadership during Japan’s postwar economic growth and his role in the return of Okinawa.
-
E.
Yuko Kishida
Yuko Kishida is the wife of Japanese Prime Minister Fumio Kishida and serves as Japan’s First Lady, engaging in various diplomatic and public activities.
- 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: Junichiro Koizumi Target entity description: Junichiro Koizumi is a reformist Japanese politician who served as Prime Minister from 2001 to 2006, known for his charismatic style and efforts to privatize Japan’s postal system.
-
A.
Yasuhiro Nakasone
Yasuhiro Nakasone was a prominent Japanese statesman who served as Prime Minister in the 1980s and was known for his efforts to strengthen Japan’s international profile and pursue administrative and educational reforms.
-
B.
Yoshihide Suga
Yoshihide Suga is a Japanese politician who served as Prime Minister of Japan from 2020 to 2021, succeeding Shinzo Abe and leading the country through the early phase of the COVID-19 pandemic.
-
C.
Fumio Kishida
Fumio Kishida is a Japanese politician and leader of the Liberal Democratic Party who serves as the Prime Minister of Japan.
-
D.
Eisaku Satō
Eisaku Satō was a Japanese politician who served as Prime Minister and Nobel Peace Prize laureate, known for his leadership during Japan’s postwar economic growth and his role in the return of Okinawa.
-
E.
Yuko Kishida
Yuko Kishida is the wife of Japanese Prime Minister Fumio Kishida and serves as Japan’s First Lady, engaging in various diplomatic and public activities.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese politician
ⓘ
human ⓘ |
| child | Shinjiro Koizumi ⓘ |
| countryOfCitizenship | Japan ⓘ |
| dateOfBirth | 1942-01-08 ⓘ |
| educatedAt | Keio University ⓘ |
| endTime | 2006-09-26 (as Prime Minister of Japan) ⓘ |
| era |
Heisei
ⓘ
surface form:
Heisei period
|
| familyName | Koizumi ⓘ |
| father | Jun’ya Koizumi ⓘ |
| fieldOfStudy | economics ⓘ |
| givenName | Junichiro ⓘ |
| hasSignature | signature of Junichiro Koizumi ⓘ |
| headOfGovernmentOf | Japan ⓘ |
| heldOffice |
Minister of Health and Welfare of Japan
ⓘ
Minister for Internal Affairs and Communications of Japan ⓘ
surface form:
Minister of Posts and Telecommunications of Japan
|
| ideology |
conservatism
ⓘ
neoliberalism ⓘ |
| influenced | Shinzo Abe ⓘ |
| knownFor |
charismatic leadership style
ⓘ
economic reforms in Japan ⓘ privatization of Japan Post ⓘ |
| languageSpoken | Japanese ⓘ |
| memberOfPoliticalParty | Liberal Democratic Party ⓘ |
| name | Junichiro Koizumi self-link ⓘ |
| nativeName |
Junichiro Koizumi
self-linksurface differs
ⓘ
surface form:
小泉純一郎
|
| occupation | politician ⓘ |
| parliamentaryConstituency | Kanagawa 11th district ⓘ |
| placeOfBirth | Yokosuka, Kanagawa, Japan ⓘ |
| policyFocus |
fiscal consolidation
ⓘ
privatization of state-owned enterprises ⓘ structural economic reform ⓘ |
| positionHeld |
Member of the House of Representatives of Japan
ⓘ
President of the Liberal Democratic Party ⓘ Prime Minister of Japan ⓘ |
| relative | Shinjiro Koizumi ⓘ |
| religion |
Shinto
ⓘ
surface form:
Shinto (cultural affiliation)
|
| replaced | Yoshirō Mori (as Prime Minister of Japan) ⓘ |
| replacedBy |
Shinzo Abe
ⓘ
surface form:
Shinzō Abe (as Prime Minister of Japan)
|
| residence |
Tokyo
ⓘ
surface form:
Tokyo, Japan
|
| servedInCabinetOf |
Kiichi Miyazawa
ⓘ
Noboru Takeshita ⓘ Yasuhiro Nakasone ⓘ |
| sexOrGender | male ⓘ |
| spouse | Kayoko Miyamoto ⓘ |
| startTime | 2001-04-26 (as Prime Minister of Japan) ⓘ |
| termEndAsLDPPresident | 2006-09-20 ⓘ |
| termStartAsLDPPresident | 2001-04-24 ⓘ |
| visited |
Yoshirō Mori (as Prime Minister of Japan)
ⓘ
surface form:
Yasukuni Shrine (multiple times as Prime Minister)
|
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: Junichiro Koizumi Description of subject: Junichiro Koizumi is a reformist Japanese politician who served as Prime Minister from 2001 to 2006, known for his charismatic style and efforts to privatize Japan’s postal system.
Referenced by (29)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
小泉純一郎
subject surface form:
Yoshirō Mori
subject surface form:
Yoshirō Mori
subject surface form:
Shinzo Abe
this entity surface form:
小泉純一郎
this entity surface form:
小泉純一郎
this entity surface form:
小泉純一郎