Iichirō Hatoyama
E185899
Iichirō Hatoyama was a Japanese politician and diplomat who served as foreign minister and came from a prominent political family that produced multiple prime ministers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Iichirō Hatoyama canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1593767 — 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: Iichirō Hatoyama Context triple: [Yukio Hatoyama, father, Iichirō Hatoyama]
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A.
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.
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B.
Shigeru Yoshida
Shigeru Yoshida was a Japanese diplomat and statesman who led Japan’s post–World War II recovery and helped shape its pacifist constitution and pro-Western foreign policy.
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C.
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.
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D.
Ichirō Ozawa
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.
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E.
Nobusuke Kishi
Nobusuke Kishi was a prominent Japanese politician who served as Prime Minister from 1957 to 1960 and played a key role in postwar Japan’s political and economic direction.
- 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: Iichirō Hatoyama Target entity description: Iichirō Hatoyama was a Japanese politician and diplomat who served as foreign minister and came from a prominent political family that produced multiple prime ministers.
-
A.
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.
-
B.
Shigeru Yoshida
Shigeru Yoshida was a Japanese diplomat and statesman who led Japan’s post–World War II recovery and helped shape its pacifist constitution and pro-Western foreign policy.
-
C.
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.
-
D.
Ichirō Ozawa
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.
-
E.
Nobusuke Kishi
Nobusuke Kishi was a prominent Japanese politician who served as Prime Minister from 1957 to 1960 and played a key role in postwar Japan’s political and economic direction.
- F. None of above. chosen
Statements (41)
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: Iichirō Hatoyama Description of subject: Iichirō Hatoyama was a Japanese politician and diplomat who served as foreign minister and came from a prominent political family that produced multiple prime ministers.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.