Yukio Hatoyama
E34232
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Yukio Hatoyama canonical | 15 |
| Hatoyama | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T262310 — 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: Yukio Hatoyama Context triple: [University of Tokyo, hasNotableAlumni, Yukio Hatoyama]
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A.
Junichiro Koizumi
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.
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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.
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C.
Shinzo Abe
Shinzo Abe was a Japanese politician who served as Japan’s longest-tenured prime minister and was a central figure in the country’s contemporary conservative politics and economic policy.
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D.
Fumio Kishida
Fumio Kishida is a Japanese politician and leader of the Liberal Democratic Party who serves as the Prime Minister of Japan.
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E.
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.
- 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: Yukio Hatoyama Target entity description: 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.
-
A.
Junichiro Koizumi
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.
-
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.
Shinzo Abe
Shinzo Abe was a Japanese politician who served as Japan’s longest-tenured prime minister and was a central figure in the country’s contemporary conservative politics and economic policy.
-
D.
Fumio Kishida
Fumio Kishida is a Japanese politician and leader of the Liberal Democratic Party who serves as the Prime Minister of Japan.
-
E.
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.
- F. None of above. chosen
Statements (49)
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: Yukio Hatoyama Description of subject: 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.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hatoyama