Jeff Nelson
E263328
Jeff Nelson is a Major League Baseball umpire who has served in numerous postseason games, including as a crew chief in the World Series.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jeff Nelson canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1590252 — 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: Jeff Nelson Context triple: [2014 World Series, umpireCrewChief, Jeff Nelson]
-
A.
Phil Johnston
Phil Johnston is an American screenwriter and filmmaker known for co-writing animated hits such as Disney's "Zootopia" and "Wreck-It Ralph."
-
B.
David Scearce
David Scearce is a Canadian screenwriter best known for adapting Christopher Isherwood’s novel into the acclaimed film "A Single Man."
-
C.
Douglas Kirk
Douglas Kirk is an individual notable enough to be recognized as a prominent bearer of the surname Kirk.
-
D.
Mike Gunton
Mike Gunton is a British television producer best known for his work on landmark BBC natural history documentaries.
-
E.
Jeff Wells
Jeff Wells is the adventurous young protagonist of the science fiction series "The Norby Chronicles," known for his escapades with the quirky robot Norby.
- 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: Jeff Nelson Target entity description: Jeff Nelson is a Major League Baseball umpire who has served in numerous postseason games, including as a crew chief in the World Series.
-
A.
Phil Johnston
Phil Johnston is an American screenwriter and filmmaker known for co-writing animated hits such as Disney's "Zootopia" and "Wreck-It Ralph."
-
B.
David Scearce
David Scearce is a Canadian screenwriter best known for adapting Christopher Isherwood’s novel into the acclaimed film "A Single Man."
-
C.
Douglas Kirk
Douglas Kirk is an individual notable enough to be recognized as a prominent bearer of the surname Kirk.
-
D.
Mike Gunton
Mike Gunton is a British television producer best known for his work on landmark BBC natural history documentaries.
-
E.
Jeff Wells
Jeff Wells is the adventurous young protagonist of the science fiction series "The Norby Chronicles," known for his escapades with the quirky robot Norby.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
baseball umpire
ⓘ
human ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employer | Major League Baseball ⓘ |
| field | baseball ⓘ |
| gender | male ⓘ |
| hasExperienceIn |
World Series officiating
ⓘ
postseason officiating ⓘ |
| hasParticipatedIn |
Major League Baseball postseason
ⓘ
linked to:
MLB playoffs
World Series ⓘ |
| hasRoleInEvent | World Series crew chief ⓘ |
| isA | MLB umpire ⓘ |
| languageOfWorkOrName | English ⓘ |
| notableFor | officiating numerous postseason games ⓘ |
| occupation | Major League Baseball umpire ⓘ |
| partOf |
MLB umpiring staff
ⓘ
linked to:
Major League Baseball umpires
|
| positionHeld | crew chief ⓘ |
| role | umpire ⓘ |
| sport | baseball ⓘ |
| workLocation |
United States
ⓘ
linked to:
United States of America
|
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: Jeff Nelson Description of subject: Jeff Nelson is a Major League Baseball umpire who has served in numerous postseason games, including as a crew chief in the World Series.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.