Yusei Kikuchi
E591606
Yusei Kikuchi is a Japanese professional baseball pitcher who has played in both Nippon Professional Baseball and Major League Baseball, known for his left-handed delivery and tenure with teams like the Seattle Mariners and Toronto Blue Jays.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Yusei Kikuchi canonical | 2 |
| Yusei | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6274745 — 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: Yusei Kikuchi Context triple: [Kikuchi, hasNotableBearer, Yusei Kikuchi]
-
A.
Takuya Onishi
Takuya Onishi is a Japanese astronaut and former commercial airline pilot who flew to the International Space Station as a JAXA mission specialist.
-
B.
Toru Watanabe
Toru Watanabe is the introspective university student protagonist of Haruki Murakami’s novel "Norwegian Wood," whose coming-of-age story explores love, loss, and emotional turmoil in 1960s Tokyo.
-
C.
Kenta Nagata
Kenta Nagata is a Japanese video game composer best known for his work on Nintendo titles, particularly in the Mario Kart and The Legend of Zelda series.
-
D.
Hayato Ikeda
Hayato Ikeda was a Japanese prime minister known for his “income-doubling plan” and for overseeing rapid economic growth and modernization in postwar Japan.
-
E.
Kenta Izumi
Kenta Izumi is a Japanese politician who serves as the leader of the main opposition force, the Constitutional Democratic Party of Japan.
- 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: Yusei Kikuchi Target entity description: Yusei Kikuchi is a Japanese professional baseball pitcher who has played in both Nippon Professional Baseball and Major League Baseball, known for his left-handed delivery and tenure with teams like the Seattle Mariners and Toronto Blue Jays.
-
A.
Takuya Onishi
Takuya Onishi is a Japanese astronaut and former commercial airline pilot who flew to the International Space Station as a JAXA mission specialist.
-
B.
Toru Watanabe
Toru Watanabe is the introspective university student protagonist of Haruki Murakami’s novel "Norwegian Wood," whose coming-of-age story explores love, loss, and emotional turmoil in 1960s Tokyo.
-
C.
Kenta Nagata
Kenta Nagata is a Japanese video game composer best known for his work on Nintendo titles, particularly in the Mario Kart and The Legend of Zelda series.
-
D.
Hayato Ikeda
Hayato Ikeda was a Japanese prime minister known for his “income-doubling plan” and for overseeing rapid economic growth and modernization in postwar Japan.
-
E.
Kenta Izumi
Kenta Izumi is a Japanese politician who serves as the leader of the main opposition force, the Constitutional Democratic Party of Japan.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
baseball pitcher
ⓘ
human ⓘ professional baseball player ⓘ |
| bats | left ⓘ |
| countryOfCitizenship | Japan ⓘ |
| familyName | Kikuchi ⓘ |
| fieldOfWork | professional sports ⓘ |
| fullName | Yusei Kikuchi ⓘ |
| givenName |
Yusei
ⓘ
linked to:
Yusei Kikuchi
|
| handedness | left-handed pitcher ⓘ |
| hasCitizenship | Japan ⓘ |
| hasPlayedFor |
Saitama Seibu Lions in NPB
ⓘ
linked to:
Saitama Seibu Lions
Seattle Mariners in MLB ⓘ Toronto Blue Jays in MLB ⓘ |
| hasRole | starting pitcher ⓘ |
| isA | Japanese professional baseball pitcher ⓘ |
| languageSpoken | Japanese ⓘ |
| leagueParticipatedIn |
Major League Baseball
ⓘ
Nippon Professional Baseball ⓘ |
| memberOfSportsTeam |
Saitama Seibu Lions
ⓘ
Seattle Mariners ⓘ Toronto Blue Jays ⓘ |
| nationality | Japanese ⓘ |
| notableFor |
left-handed pitching delivery
ⓘ
playing in both NPB and MLB ⓘ |
| occupation | baseball player ⓘ |
| partOf |
Japanese expatriate baseball players in Canada
ⓘ
Japanese expatriate baseball players in the United States ⓘ |
| playedInLeague |
American League
ⓘ
Pacific League ⓘ |
| positionPlayed | pitcher ⓘ |
| residence | Japan ⓘ |
| sexOrGender | male ⓘ |
| sport | baseball ⓘ |
| throws | left ⓘ |
| typeOfPitcher | left-handed starting pitcher ⓘ |
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: Yusei Kikuchi Description of subject: Yusei Kikuchi is a Japanese professional baseball pitcher who has played in both Nippon Professional Baseball and Major League Baseball, known for his left-handed delivery and tenure with teams like the Seattle Mariners and Toronto Blue Jays.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yusei Kikuchi