Koji Yamamoto
E758676
Koji Yamamoto is a former Japanese professional baseball outfielder and manager, widely regarded as one of the greatest hitters in Nippon Professional Baseball history.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Koji Yamamoto canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4984497 — 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: Koji Yamamoto Context triple: [Hiroshima Toyo Carp, notablePlayer, Koji Yamamoto]
-
A.
Sakon Yamamoto
Sakon Yamamoto is a Japanese racing driver best known for his stint in Formula One during the mid-2000s with several backmarker teams.
-
B.
Kuribayashi Taro
Kuribayashi Taro is the son of Japanese General Tadamichi Kuribayashi, the famed commander of Japanese forces during the World War II Battle of Iwo Jima.
-
C.
Mutaguchi Renya
Mutaguchi Renya was a Japanese general best known for commanding the ill-fated Imphal offensive in Burma during World War II.
-
D.
Yosuke Matsuoka
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.
-
E.
Yoshii Kuribayashi
Yoshii Kuribayashi was the wife of Japanese General Tadamichi Kuribayashi, the commander of Japanese forces during the Battle of Iwo Jima in World War II.
- 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: Koji Yamamoto Target entity description: Koji Yamamoto is a former Japanese professional baseball outfielder and manager, widely regarded as one of the greatest hitters in Nippon Professional Baseball history.
-
A.
Sakon Yamamoto
Sakon Yamamoto is a Japanese racing driver best known for his stint in Formula One during the mid-2000s with several backmarker teams.
-
B.
Kuribayashi Taro
Kuribayashi Taro is the son of Japanese General Tadamichi Kuribayashi, the famed commander of Japanese forces during the World War II Battle of Iwo Jima.
-
C.
Mutaguchi Renya
Mutaguchi Renya was a Japanese general best known for commanding the ill-fated Imphal offensive in Burma during World War II.
-
D.
Yosuke Matsuoka
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.
-
E.
Yoshii Kuribayashi
Yoshii Kuribayashi was the wife of Japanese General Tadamichi Kuribayashi, the commander of Japanese forces during the Battle of Iwo Jima in World War II.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese professional baseball player
ⓘ
baseball manager ⓘ baseball outfielder ⓘ human ⓘ |
| bats | right ⓘ |
| countryOfCitizenship | Japan ⓘ |
| familyName | Yamamoto ⓘ |
| gender | male ⓘ |
| givenName | Koji ⓘ |
| hallOfFame | Japanese Baseball Hall of Fame ⓘ |
| isConsidered | one of the greatest hitters in Nippon Professional Baseball history ⓘ |
| league | Nippon Professional Baseball ⓘ |
| leaguePlayedIn |
Central League
ⓘ
linked to:
Nippon Professional Baseball Central League
|
| memberOfSportsTeam | Hiroshima Toyo Carp ⓘ |
| name | Koji Yamamoto ⓘ |
| nationality | Japanese ⓘ |
| notableFor |
career with Hiroshima Toyo Carp
ⓘ
power hitting ⓘ success as a manager in NPB ⓘ |
| occupation |
baseball manager
ⓘ
baseball player ⓘ coach ⓘ |
| positionPlayed | outfielder ⓘ |
| retired | true ⓘ |
| sport | baseball ⓘ |
| sportingDiscipline | professional baseball ⓘ |
| teamManaged | Hiroshima Toyo Carp ⓘ |
| teamPlayedFor | Hiroshima Toyo Carp ⓘ |
| throws | right ⓘ |
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: Koji Yamamoto Description of subject: Koji Yamamoto is a former Japanese professional baseball outfielder and manager, widely regarded as one of the greatest hitters in Nippon Professional Baseball history.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.