Yosuke Matsuoka
E306625
Yosuke Matsuoka was a prominent Japanese diplomat and foreign minister of the early Shōwa era, known for his role in Japan’s expansionist foreign policy leading up to and during World War II.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Yosuke Matsuoka canonical | 2 |
| Yōsuke Matsuoka | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2073625 — 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: Yosuke Matsuoka Context triple: [Soviet–Japanese Neutrality Pact, signedByPerson, Yosuke Matsuoka]
-
A.
Saburō Kurusu
Saburō Kurusu was a Japanese diplomat best known for his role in U.S.-Japan negotiations immediately before the attack on Pearl Harbor.
-
B.
Jisaburō Ozawa
Jisaburō Ozawa was a Japanese admiral in the Imperial Japanese Navy during World War II, known for commanding the fleet in several major Pacific battles and for his role in Japan’s final large-scale naval engagements.
-
C.
Takeo Miki
Takeo Miki was a Japanese politician who served as Prime Minister in the mid-1970s and was known for his efforts to reform the ruling Liberal Democratic Party and restore public trust after political scandals.
-
D.
Jirō Minami
Jirō Minami was a Japanese general and colonial administrator who served as Governor-General of Korea during the later period of Japanese rule.
-
E.
Raizō Tanaka
Raizō Tanaka was a prominent Imperial Japanese Navy admiral and destroyer squadron commander in World War II, renowned for his aggressive night-fighting tactics in the Solomon Islands campaign.
- 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: Yosuke Matsuoka Target entity description: Yosuke Matsuoka was a prominent Japanese diplomat and foreign minister of the early Shōwa era, known for his role in Japan’s expansionist foreign policy leading up to and during World War II.
-
A.
Saburō Kurusu
Saburō Kurusu was a Japanese diplomat best known for his role in U.S.-Japan negotiations immediately before the attack on Pearl Harbor.
-
B.
Jisaburō Ozawa
Jisaburō Ozawa was a Japanese admiral in the Imperial Japanese Navy during World War II, known for commanding the fleet in several major Pacific battles and for his role in Japan’s final large-scale naval engagements.
-
C.
Takeo Miki
Takeo Miki was a Japanese politician who served as Prime Minister in the mid-1970s and was known for his efforts to reform the ruling Liberal Democratic Party and restore public trust after political scandals.
-
D.
Jirō Minami
Jirō Minami was a Japanese general and colonial administrator who served as Governor-General of Korea during the later period of Japanese rule.
-
E.
Raizō Tanaka
Raizō Tanaka was a prominent Imperial Japanese Navy admiral and destroyer squadron commander in World War II, renowned for his aggressive night-fighting tactics in the Solomon Islands campaign.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese politician
ⓘ
diplomat ⓘ foreign minister ⓘ human ⓘ |
| causeOfDeath | natural causes ⓘ |
| charge | Class A war crimes suspect ⓘ |
| countryOfCitizenship | Japan ⓘ |
| dateOfBirth | 1880-03-03 ⓘ |
| dateOfDeath | 1946-06-27 ⓘ |
| detainedAt | Sugamo Prison ⓘ |
| diedBeforeEndOf | International Military Tribunal for the Far East proceedings ⓘ |
| educatedAt |
Tokyo Imperial University
ⓘ
linked to:
Tokyo Daigaku
University of Oregon ⓘ |
| employer |
Government of Japan
ⓘ
South Manchuria Railway Company ⓘ |
| era |
Shōwa period
ⓘ
linked to:
Showa era
|
| languageSpokenWrittenOrSigned |
English
ⓘ
Japanese ⓘ |
| memberOf | Imperial Rule Assistance Association ⓘ |
| name | Yosuke Matsuoka ⓘ |
| nativeName | 松岡 洋右 ⓘ |
| notableEvent |
advocated alliance with Nazi Germany and Fascist Italy
ⓘ
announced Japan’s withdrawal from the League of Nations in 1933 ⓘ led Japanese delegation to the League of Nations in 1933 ⓘ negotiated the Tripartite Pact ⓘ participated in diplomacy regarding Manchukuo ⓘ promoted expansionist foreign policy in early Shōwa era ⓘ |
| notableWork | Japanese withdrawal from the League of Nations ⓘ |
| occupation |
diplomat
ⓘ
lawyer ⓘ politician ⓘ |
| officeEndTime | 1941-07-18 ⓘ |
| officeStartTime | 1940-07-22 ⓘ |
| participantIn |
League of Nations Manchurian crisis debates
ⓘ
World War II ⓘ diplomatic negotiations of the Tripartite Pact ⓘ |
| placeOfBirth |
Japan
ⓘ
Yamaguchi Prefecture ⓘ |
| placeOfDeath |
Japan
ⓘ
Tokyo ⓘ |
| politicalAlignment | Japanese militarist government ⓘ |
| positionHeld |
Member of the House of Representatives of Japan
ⓘ
Minister for Foreign Affairs of Japan ⓘ President of the South Manchuria Railway Company ⓘ |
| religion | Buddhism ⓘ |
| sexOrGender | male ⓘ |
| wasTriedBy | International Military Tribunal for the Far East ⓘ |
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: Yosuke Matsuoka Description of subject: Yosuke Matsuoka was a prominent Japanese diplomat and foreign minister of the early Shōwa era, known for his role in Japan’s expansionist foreign policy leading up to and during World War II.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yosuke Matsuoka