Dennis Martínez
E433982
Dennis Martínez is a former Nicaraguan Major League Baseball pitcher best known for being the first Latin American to throw a perfect game in MLB history.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dennis Martínez canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4343468 — 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: Dennis Martínez Context triple: [Estadio Nacional Dennis Martínez, namedAfter, Dennis Martínez]
-
A.
Orlando Hernández
Orlando Hernández is a Cuban-born former Major League Baseball pitcher, nicknamed "El Duque," best known for his success with the New York Yankees during their late-1990s championship run.
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B.
Pedro Martínez
Pedro Martínez is a Hall of Fame Dominican pitcher renowned for his dominant performances in Major League Baseball during the late 1990s and early 2000s.
-
C.
Fernando Valenzuela
Fernando Valenzuela is a Mexican former Major League Baseball pitcher who became a cultural phenomenon in the 1980s, known for his dominant performances, distinctive screwball, and key role in the Los Angeles Dodgers’ success.
-
D.
Javier Mariscal
Javier Mariscal is a Spanish designer and illustrator renowned for his playful, postmodern graphic style and influential work in contemporary design and visual culture.
-
E.
Bartolo Colón
Bartolo Colón is a Dominican former Major League Baseball pitcher known for his longevity, power pitching, and 2012 American League Cy Young Award.
- 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: Dennis Martínez Target entity description: Dennis Martínez is a former Nicaraguan Major League Baseball pitcher best known for being the first Latin American to throw a perfect game in MLB history.
-
A.
Orlando Hernández
Orlando Hernández is a Cuban-born former Major League Baseball pitcher, nicknamed "El Duque," best known for his success with the New York Yankees during their late-1990s championship run.
-
B.
Pedro Martínez
Pedro Martínez is a Hall of Fame Dominican pitcher renowned for his dominant performances in Major League Baseball during the late 1990s and early 2000s.
-
C.
Fernando Valenzuela
Fernando Valenzuela is a Mexican former Major League Baseball pitcher who became a cultural phenomenon in the 1980s, known for his dominant performances, distinctive screwball, and key role in the Los Angeles Dodgers’ success.
-
D.
Javier Mariscal
Javier Mariscal is a Spanish designer and illustrator renowned for his playful, postmodern graphic style and influential work in contemporary design and visual culture.
-
E.
Bartolo Colón
Bartolo Colón is a Dominican former Major League Baseball pitcher known for his longevity, power pitching, and 2012 American League Cy Young Award.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Major League Baseball player
ⓘ
baseball player ⓘ human ⓘ pitcher ⓘ |
| activeYearsInMLB | 1976–1998 ⓘ |
| bats | right ⓘ |
| careerERA | 3.70 ⓘ |
| careerInningsPitched | 3999.2 ⓘ |
| careerStrikeoutsMLB | 2149 ⓘ |
| careerWinsMLB | 245 ⓘ |
| countryOfCitizenship | Nicaragua NERFINISHED ⓘ |
| dateOfBirth | 1955-05-14 ⓘ |
| distinction | first Latin American pitcher to throw a perfect game in MLB history ⓘ |
| familyName | Martínez NERFINISHED ⓘ |
| finalMLBGameDate | 1998-09-27 ⓘ |
| finalMLBTeam | Atlanta Braves NERFINISHED ⓘ |
| givenName | Dennis NERFINISHED ⓘ |
| hallOfFameInduction | Canadian Baseball Hall of Fame NERFINISHED ⓘ |
| languageSpoken | Spanish ⓘ |
| leagueDebut | Major League Baseball NERFINISHED ⓘ |
| MLBAllStarSelection |
1990
ⓘ
1991 ⓘ 1992 ⓘ 1995 ⓘ |
| MLBDebutDate | 1976-09-14 ⓘ |
| MLBDebutTeam | Baltimore Orioles NERFINISHED ⓘ |
| name | Dennis Martínez NERFINISHED ⓘ |
| nationality | Nicaraguan ⓘ |
| nickname | El Presidente NERFINISHED ⓘ |
| notableAchievement | pitched the 13th perfect game in modern MLB history ⓘ |
| numberOfPerfectGamesPitched | 1 ⓘ |
| occupation |
baseball coach
ⓘ
professional baseball player ⓘ |
| opponentDuringPerfectGame | Los Angeles Dodgers NERFINISHED ⓘ |
| placeOfBirth | Granada, Nicaragua NERFINISHED ⓘ |
| playedFor |
Atlanta Braves
NERFINISHED
ⓘ
Baltimore Orioles NERFINISHED ⓘ Cleveland Indians NERFINISHED ⓘ Montreal Expos NERFINISHED ⓘ Seattle Mariners NERFINISHED ⓘ |
| positionPlayed | starting pitcher ⓘ |
| sexOrGender | male ⓘ |
| teamDuringPerfectGame | Montreal Expos NERFINISHED ⓘ |
| threwPerfectGame | 1991-07-28 ⓘ |
| throws | right ⓘ |
| venueOfPerfectGame | Dodger Stadium NERFINISHED ⓘ |
| yearOfCanadianBaseballHallOfFameInduction | 2016 ⓘ |
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: Dennis Martínez Description of subject: Dennis Martínez is a former Nicaraguan Major League Baseball pitcher best known for being the first Latin American to throw a perfect game in MLB history.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.