Ichirō Matsui
E441443
Ichirō Matsui is a Japanese politician and former governor of Osaka Prefecture, best known as a leading figure in regional reform politics and as a co-founder of the Nippon Ishin no Kai party.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ichirō Matsui canonical | 3 |
| Ichiro Matsui | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4464118 — 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 Matsui Context triple: [Nippon Ishin no Kai, foundedBy, Ichirō Matsui]
-
A.
Hideki Matsui
Hideki Matsui is a former Japanese professional baseball slugger who became a star outfielder and designated hitter in Major League Baseball, most notably with the New York Yankees.
-
B.
Tiger Tanaka
Tiger Tanaka is the head of the Japanese Secret Service and a key ally to James Bond in the film and novel "You Only Live Twice."
-
C.
Tatsunori Hara
Tatsunori Hara is a prominent Japanese baseball manager and former Yomiuri Giants star known for leading both his club and Japan’s national team to multiple championships.
-
D.
Yasuo Matsui
Yasuo Matsui was a Japanese-American architect active in early 20th-century New York City, known for his work on prominent skyscrapers.
-
E.
Hideo Nomo
Hideo Nomo is a pioneering Japanese pitcher who became a Major League Baseball star in the 1990s, helping open the door for future Japanese players in the United States.
- 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 Matsui Target entity description: Ichirō Matsui is a Japanese politician and former governor of Osaka Prefecture, best known as a leading figure in regional reform politics and as a co-founder of the Nippon Ishin no Kai party.
-
A.
Hideki Matsui
Hideki Matsui is a former Japanese professional baseball slugger who became a star outfielder and designated hitter in Major League Baseball, most notably with the New York Yankees.
-
B.
Tiger Tanaka
Tiger Tanaka is the head of the Japanese Secret Service and a key ally to James Bond in the film and novel "You Only Live Twice."
-
C.
Tatsunori Hara
Tatsunori Hara is a prominent Japanese baseball manager and former Yomiuri Giants star known for leading both his club and Japan’s national team to multiple championships.
-
D.
Yasuo Matsui
Yasuo Matsui was a Japanese-American architect active in early 20th-century New York City, known for his work on prominent skyscrapers.
-
E.
Hideo Nomo
Hideo Nomo is a pioneering Japanese pitcher who became a Major League Baseball star in the 1990s, helping open the door for future Japanese players in the United States.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese politician
ⓘ
human ⓘ |
| coFounderOf |
Nippon Ishin no Kai
ⓘ
Osaka Restoration Association ⓘ |
| country | Japan ⓘ |
| countryOfCitizenship | Japan ⓘ |
| familyName | Matsui ⓘ |
| fieldOfWork |
local government reform
ⓘ
public administration ⓘ |
| givenName | Ichirō ⓘ |
| knownFor |
co-founding Nippon Ishin no Kai
ⓘ
governorship of Osaka Prefecture ⓘ mayoralty of Osaka City ⓘ |
| languageSpoken | Japanese ⓘ |
| name | Ichirō Matsui ⓘ |
| nativeName | 松井一郎 ⓘ |
| notableFor |
advocacy of Osaka Metropolis plan
ⓘ
regional reform politics in Osaka ⓘ |
| notableRole | leading figure in Osaka regional reform ⓘ |
| occupation | politician ⓘ |
| politicalAlignment |
reformist politics
ⓘ
regionalist politics ⓘ |
| politicalParty |
Nippon Ishin no Kai
ⓘ
Osaka Restoration Association ⓘ |
| positionHeld |
Governor of Osaka Prefecture
ⓘ
Leader of Nippon Ishin no Kai ⓘ Mayor of Osaka City ⓘ Member of the House of Councillors of Japan ⓘ Member of the Osaka Prefectural Assembly ⓘ Secretary-General of the Osaka Restoration Association ⓘ |
| residence | Osaka Prefecture ⓘ |
| sexOrGender | male ⓘ |
| workLocation |
Osaka City
ⓘ
linked to:
Osaka
Osaka Prefecture ⓘ |
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 Matsui Description of subject: Ichirō Matsui is a Japanese politician and former governor of Osaka Prefecture, best known as a leading figure in regional reform politics and as a co-founder of the Nippon Ishin no Kai party.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ichirō Matsui