Akinori Otsuka
E747927
Akinori Otsuka is a former Japanese professional baseball relief pitcher who starred in Nippon Professional Baseball and later became a successful closer in Major League Baseball.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Akinori Otsuka canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4955132 — 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: Akinori Otsuka Context triple: [Chunichi Dragons, notablePlayer, Akinori Otsuka]
-
A.
Shigetada Nakanishi
Shigetada Nakanishi is a Japanese neuroscientist renowned for his pioneering work on neurotransmitter receptors and synaptic transmission.
-
B.
Takashi Ozaki
Takashi Ozaki was a Japanese mountaineer known for pioneering ascents in remote Asian ranges, including leading the first successful climb of Myanmar’s Hkakabo Razi.
-
C.
Takatoshi Nishiwaki
Takatoshi Nishiwaki is a Japanese politician serving as the governor of Kyoto Prefecture.
-
D.
Hiroki Ishikawa
Hiroki Ishikawa is an actor known for portraying the iconic kaiju Godzilla in Japanese monster films.
-
E.
Katsuya Eguchi
Katsuya Eguchi is a veteran Nintendo game designer and producer best known for creating the Animal Crossing series and contributing to numerous major Nintendo titles.
- 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: Akinori Otsuka Target entity description: Akinori Otsuka is a former Japanese professional baseball relief pitcher who starred in Nippon Professional Baseball and later became a successful closer in Major League Baseball.
-
A.
Shigetada Nakanishi
Shigetada Nakanishi is a Japanese neuroscientist renowned for his pioneering work on neurotransmitter receptors and synaptic transmission.
-
B.
Takashi Ozaki
Takashi Ozaki was a Japanese mountaineer known for pioneering ascents in remote Asian ranges, including leading the first successful climb of Myanmar’s Hkakabo Razi.
-
C.
Takatoshi Nishiwaki
Takatoshi Nishiwaki is a Japanese politician serving as the governor of Kyoto Prefecture.
-
D.
Hiroki Ishikawa
Hiroki Ishikawa is an actor known for portraying the iconic kaiju Godzilla in Japanese monster films.
-
E.
Katsuya Eguchi
Katsuya Eguchi is a veteran Nintendo game designer and producer best known for creating the Animal Crossing series and contributing to numerous major Nintendo titles.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
baseball player
ⓘ
closer ⓘ human ⓘ pitcher ⓘ relief pitcher ⓘ |
| bats | right ⓘ |
| countryOfCitizenship | Japan ⓘ |
| familyName | Otsuka NERFINISHED ⓘ |
| fieldOfWork |
baseball coaching
ⓘ
professional sports ⓘ |
| gender | male ⓘ |
| givenName | Akinori NERFINISHED ⓘ |
| handedness | right-handed pitcher ⓘ |
| hasExperienceIn |
Japanese professional baseball
ⓘ
North American professional baseball ⓘ |
| hasPlayedRole |
closer
ⓘ
setup man ⓘ |
| isKnownAs | former Japanese professional baseball relief pitcher ⓘ |
| languageSpoken | Japanese ⓘ |
| laterOccupation |
coach in Nippon Professional Baseball
ⓘ
pitching coach ⓘ |
| leagueParticipatedIn |
Major League Baseball
NERFINISHED
ⓘ
Nippon Professional Baseball NERFINISHED ⓘ |
| name | Akinori Otsuka NERFINISHED ⓘ |
| nationality | Japanese ⓘ |
| notableFor |
successful closer in Major League Baseball
ⓘ
successful relief pitching in Nippon Professional Baseball ⓘ |
| occupation |
baseball coach
ⓘ
professional baseball player ⓘ |
| participatedIn |
Major League Baseball postseason
NERFINISHED
ⓘ
Nippon Professional Baseball All-Star Games NERFINISHED ⓘ |
| playedIn |
Japan
NERFINISHED
ⓘ
United States NERFINISHED ⓘ |
| positionPlayed |
closer
ⓘ
pitcher ⓘ relief pitcher ⓘ |
| role |
closer for Texas Rangers
ⓘ
relief pitcher for San Diego Padres ⓘ |
| sport | baseball ⓘ |
| status | retired player ⓘ |
| styleOfPlay |
relief specialist
ⓘ
strikeout-oriented pitcher ⓘ |
| teamPlayedFor |
Chunichi Dragons
NERFINISHED
ⓘ
Kintetsu Buffaloes NERFINISHED ⓘ San Diego Padres NERFINISHED ⓘ Texas Rangers NERFINISHED ⓘ |
| 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: Akinori Otsuka Description of subject: Akinori Otsuka is a former Japanese professional baseball relief pitcher who starred in Nippon Professional Baseball and later became a successful closer in Major League Baseball.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.