Kelvin Herrera
E471820
Kelvin Herrera is a Dominican former Major League Baseball relief pitcher best known for his dominant role in the Kansas City Royals’ bullpen during their mid-2010s postseason runs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kelvin Herrera canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4778378 — 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: Kelvin Herrera Context triple: [2014 American League Championship Series, game4WinningPitcher, Kelvin Herrera]
-
A.
Fredy Montero
Fredy Montero is a Colombian professional footballer best known as a prolific forward and fan favorite for Seattle Sounders FC in Major League Soccer.
-
B.
Ezequiel Barco
Ezequiel Barco is an Argentine attacking midfielder known for his dribbling and creativity, who gained prominence in Major League Soccer before returning to play in South America.
-
C.
Álvaro Rodríguez
Álvaro Rodríguez is a screenwriter best known for his work on genre films, including contributions to the From Dusk Till Dawn franchise.
-
D.
Christian Gómez
Christian Gómez is an Argentine attacking midfielder best known in the United States for his standout play with D.C. United in Major League Soccer.
-
E.
Iván Zamorano
Iván Zamorano is a retired Chilean striker renowned for his prolific goal-scoring at clubs like Real Madrid and Inter Milan and for being one of Chile’s greatest footballers.
- 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: Kelvin Herrera Target entity description: Kelvin Herrera is a Dominican former Major League Baseball relief pitcher best known for his dominant role in the Kansas City Royals’ bullpen during their mid-2010s postseason runs.
-
A.
Fredy Montero
Fredy Montero is a Colombian professional footballer best known as a prolific forward and fan favorite for Seattle Sounders FC in Major League Soccer.
-
B.
Ezequiel Barco
Ezequiel Barco is an Argentine attacking midfielder known for his dribbling and creativity, who gained prominence in Major League Soccer before returning to play in South America.
-
C.
Álvaro Rodríguez
Álvaro Rodríguez is a screenwriter best known for his work on genre films, including contributions to the From Dusk Till Dawn franchise.
-
D.
Christian Gómez
Christian Gómez is an Argentine attacking midfielder best known in the United States for his standout play with D.C. United in Major League Soccer.
-
E.
Iván Zamorano
Iván Zamorano is a retired Chilean striker renowned for his prolific goal-scoring at clubs like Real Madrid and Inter Milan and for being one of Chile’s greatest footballers.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
baseball player
ⓘ
human ⓘ pitcher ⓘ |
| allStarSelection |
2015
ⓘ
2016 ⓘ |
| awardReceived |
MLB All-Star
NERFINISHED
ⓘ
World Series champion (2015) NERFINISHED ⓘ |
| bats | right ⓘ |
| countryOfCitizenship | Dominican Republic NERFINISHED ⓘ |
| dateOfBirth | 1989-12-31 ⓘ |
| familyName | Herrera NERFINISHED ⓘ |
| finalMLBGameDate | 2020-07-28 ⓘ |
| finalMLBTeam | Chicago White Sox NERFINISHED ⓘ |
| gender | male ⓘ |
| givenName | Kelvin NERFINISHED ⓘ |
| jerseyNumber | 40 ⓘ |
| knownFor |
dominant fastball and changeup combination
ⓘ
key role in Kansas City Royals bullpen during mid-2010s postseason runs ⓘ |
| leaguePlayedIn | Major League Baseball NERFINISHED ⓘ |
| memberOf | 2015 Kansas City Royals World Series championship team ⓘ |
| minorLeagueOrganization | Kansas City Royals organization NERFINISHED ⓘ |
| MLBDebutDate | 2011-09-21 ⓘ |
| MLBDebutLeague | MLB NERFINISHED ⓘ |
| MLBDebutTeam | Kansas City Royals NERFINISHED ⓘ |
| occupation | former professional baseball player ⓘ |
| participatedIn |
2014 World Series
NERFINISHED
ⓘ
2015 World Series NERFINISHED ⓘ |
| placeOfBirth | Tenares, Dominican Republic NERFINISHED ⓘ |
| playedIn |
American League
NERFINISHED
ⓘ
National League NERFINISHED ⓘ |
| positionPlayed | relief pitcher ⓘ |
| retiredFrom | Major League Baseball NERFINISHED ⓘ |
| roleInTeam |
closer
ⓘ
setup man ⓘ |
| signedAs | international free agent ⓘ |
| signedBy | Kansas City Royals NERFINISHED ⓘ |
| sport | baseball ⓘ |
| styleOfPlay |
high-velocity fastball
ⓘ
power reliever ⓘ |
| teamPlayedFor |
Chicago White Sox
NERFINISHED
ⓘ
Kansas City Royals NERFINISHED ⓘ Washington Nationals 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: Kelvin Herrera Description of subject: Kelvin Herrera is a Dominican former Major League Baseball relief pitcher best known for his dominant role in the Kansas City Royals’ bullpen during their mid-2010s postseason runs.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.