Jon Lester
E33808
Jon Lester is an American former Major League Baseball left-handed pitcher best known for his postseason success and multiple World Series titles, particularly with the Boston Red Sox.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jon Lester canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T260557 — 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: Jon Lester Context triple: [2013 World Series, notablePlayer, Jon Lester]
-
A.
John Krasinski
John Krasinski is an American actor, writer, and director best known for his role as Jim Halpert on the U.S. version of "The Office" and for directing and starring in the horror film "A Quiet Place."
-
B.
John Spencer
John Spencer was an American actor best known for his Emmy-winning role as White House Chief of Staff Leo McGarry on the television drama "The West Wing."
-
C.
Rob Lowe
Rob Lowe is an American actor known for his roles in films like "St. Elmo's Fire" and TV series such as "Parks and Recreation" and "9-1-1: Lone Star."
-
D.
Zach Staenberg
Zach Staenberg is an American film editor best known for his Academy Award–winning work on "The Matrix" and its sequels.
-
E.
Art Strahan
Art Strahan is a former American football player best known as the uncle of Pro Football Hall of Famer and television personality Michael Strahan.
- 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: Jon Lester Target entity description: Jon Lester is an American former Major League Baseball left-handed pitcher best known for his postseason success and multiple World Series titles, particularly with the Boston Red Sox.
-
A.
John Krasinski
John Krasinski is an American actor, writer, and director best known for his role as Jim Halpert on the U.S. version of "The Office" and for directing and starring in the horror film "A Quiet Place."
-
B.
John Spencer
John Spencer was an American actor best known for his Emmy-winning role as White House Chief of Staff Leo McGarry on the television drama "The West Wing."
-
C.
Rob Lowe
Rob Lowe is an American actor known for his roles in films like "St. Elmo's Fire" and TV series such as "Parks and Recreation" and "9-1-1: Lone Star."
-
D.
Zach Staenberg
Zach Staenberg is an American film editor best known for his Academy Award–winning work on "The Matrix" and its sequels.
-
E.
Art Strahan
Art Strahan is a former American football player best known as the uncle of Pro Football Hall of Famer and television personality Michael Strahan.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
baseball player
ⓘ
human ⓘ pitcher ⓘ |
| bats | left-handed ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| familyName | Lester ⓘ |
| givenName |
Jonathan
ⓘ
surface form:
Jon
|
| handedness | left-handed ⓘ |
| league |
American League
ⓘ
Major League Baseball ⓘ National League ⓘ |
| memberOfSportsTeam |
Boston Red Sox
ⓘ
Chicago Cubs ⓘ Oakland Athletics ⓘ St. Louis Cardinals ⓘ Washington Nationals ⓘ |
| notableAchievement |
World Series titles with Boston Red Sox
ⓘ
multiple World Series championships ⓘ postseason success ⓘ |
| notableFor |
helping break Chicago Cubs World Series drought
ⓘ
key starter in Boston Red Sox championship runs ⓘ |
| notableWork | postseason pitching performances ⓘ |
| occupation | baseball player ⓘ |
| positionPlayed | pitcher ⓘ |
| retiredIn | 2020s ⓘ |
| sexOrGender | male ⓘ |
| sport | baseball ⓘ |
| throws | left-handed ⓘ |
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: Jon Lester Description of subject: Jon Lester is an American former Major League Baseball left-handed pitcher best known for his postseason success and multiple World Series titles, particularly with the Boston Red Sox.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.