Justin Hollander
E127066
Justin Hollander is a Major League Baseball executive who serves as the general manager of the Seattle Mariners, overseeing the club’s baseball operations and roster construction.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Justin Hollander canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T980637 — 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: Justin Hollander Context triple: [Seattle Mariners, generalManager, Justin Hollander]
-
A.
Michael Klein
Michael Klein is the father of Canadian author and activist Naomi Klein.
-
B.
Michael Filerman
Michael Filerman was an American television producer best known for developing and producing popular prime-time soap operas during the 1970s and 1980s.
-
C.
David Winkler
David Winkler is an American film producer known for his work on major Hollywood movies, including entries in the Rocky/Creed franchise.
-
D.
Tully Friedman
Tully Friedman is an American financier and private equity investor best known as the co-founder of the investment firm Hellman & Friedman.
-
E.
Max Hodak
Max Hodak is an American entrepreneur and technologist best known as the co-founder and former president of Neuralink, a company developing brain–computer interface technology.
- 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: Justin Hollander Target entity description: Justin Hollander is a Major League Baseball executive who serves as the general manager of the Seattle Mariners, overseeing the club’s baseball operations and roster construction.
-
A.
Michael Klein
Michael Klein is the father of Canadian author and activist Naomi Klein.
-
B.
Michael Filerman
Michael Filerman was an American television producer best known for developing and producing popular prime-time soap operas during the 1970s and 1980s.
-
C.
David Winkler
David Winkler is an American film producer known for his work on major Hollywood movies, including entries in the Rocky/Creed franchise.
-
D.
Tully Friedman
Tully Friedman is an American financier and private equity investor best known as the co-founder of the investment firm Hellman & Friedman.
-
E.
Max Hodak
Max Hodak is an American entrepreneur and technologist best known as the co-founder and former president of Neuralink, a company developing brain–computer interface technology.
- F. None of above. chosen
Statements (17)
| Predicate | Object |
|---|---|
| instanceOf |
Major League Baseball team
ⓘ
baseball executive ⓘ human ⓘ |
| countryOfCitizenship |
United States of America
ⓘ
surface form:
United States
|
| employer | Seattle Mariners ⓘ |
| fieldOfWork |
baseball operations
ⓘ
sports management ⓘ |
| league |
Major League Baseball
ⓘ
Major League Baseball ⓘ |
| notableRole |
overseeing the Seattle Mariners’ baseball operations
ⓘ
overseeing the Seattle Mariners’ roster construction ⓘ |
| occupation |
baseball executive
ⓘ
general manager ⓘ |
| positionHeld | general manager of the Seattle Mariners ⓘ |
| sport |
baseball
ⓘ
baseball ⓘ |
| worksIn |
MLB Commissioner’s Office
ⓘ
surface form:
Major League Baseball front office
|
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: Justin Hollander Description of subject: Justin Hollander is a Major League Baseball executive who serves as the general manager of the Seattle Mariners, overseeing the club’s baseball operations and roster construction.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.