Major League Baseball umpires
E129956
Major League Baseball umpires are the professional officials responsible for enforcing the rules, making judgment calls on plays, and maintaining order during MLB games.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T1130045 — 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: Major League Baseball umpires Context triple: [Official Baseball Rules, usedBy, Major League Baseball umpires]
-
A.
Major League Baseball managers
Major League Baseball managers are the team leaders responsible for in-game strategy, lineup decisions, and overall on-field management of professional baseball clubs in MLB.
-
B.
Major League Baseball Rules Committee
The Major League Baseball Rules Committee is the governing body responsible for reviewing, interpreting, and revising the official rules that regulate professional baseball in Major League Baseball.
-
C.
Major League Baseball
Major League Baseball is the premier professional baseball organization in North America, comprising teams from the United States and Canada and representing the highest level of play in the sport.
-
D.
Commissioner of Baseball
The Commissioner of Baseball is the chief executive and governing authority of Major League Baseball, responsible for overseeing the sport’s rules, operations, and integrity at the professional level.
-
E.
Major League Baseball owners
Major League Baseball owners are individuals or ownership groups that hold controlling financial and operational stakes in MLB franchises, shaping league governance, team management, and the overall direction of professional baseball in North America.
- 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: Major League Baseball umpires Target entity description: Major League Baseball umpires are the professional officials responsible for enforcing the rules, making judgment calls on plays, and maintaining order during MLB games.
-
A.
Major League Baseball managers
Major League Baseball managers are the team leaders responsible for in-game strategy, lineup decisions, and overall on-field management of professional baseball clubs in MLB.
-
B.
Major League Baseball Rules Committee
The Major League Baseball Rules Committee is the governing body responsible for reviewing, interpreting, and revising the official rules that regulate professional baseball in Major League Baseball.
-
C.
Major League Baseball
Major League Baseball is the premier professional baseball organization in North America, comprising teams from the United States and Canada and representing the highest level of play in the sport.
-
D.
Commissioner of Baseball
The Commissioner of Baseball is the chief executive and governing authority of Major League Baseball, responsible for overseeing the sport’s rules, operations, and integrity at the professional level.
-
E.
Major League Baseball owners
Major League Baseball owners are individuals or ownership groups that hold controlling financial and operational stakes in MLB franchises, shaping league governance, team management, and the overall direction of professional baseball in North America.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
baseball umpire
ⓘ
professional occupation ⓘ sports official role ⓘ |
| appliesToJurisdiction | Major League Baseball ⓘ |
| canEject |
coaches
ⓘ
managers ⓘ players ⓘ |
| careerPath | Minor League Baseball umpire ⓘ |
| countryOfOperation |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| employedBy | Major League Baseball ⓘ |
| fieldOfWork | baseball ⓘ |
| follows |
MLB Umpire Manual
ⓘ
Official Baseball Rules ⓘ |
| hasDuty |
approve substitutions
ⓘ
call balls and strikes ⓘ call fair and foul balls ⓘ call safe and out ⓘ confer on rules interpretations ⓘ enforce Official Baseball Rules ⓘ enforce balk rules ⓘ enforce obstruction and interference rules ⓘ enforce pace-of-play rules ⓘ maintain order during games ⓘ make judgment calls on plays ⓘ manage ejections of players and managers ⓘ |
| hasPosition |
crew chief
ⓘ
first base umpire ⓘ home plate umpire ⓘ left field umpire ⓘ right field umpire ⓘ second base umpire ⓘ third base umpire ⓘ |
| languageOfWork | English ⓘ |
| minimumLevelOfEducation | high school diploma ⓘ |
| organizedIn | Major League Baseball Umpires Association ⓘ |
| partOf | Major League Baseball officiating crew ⓘ |
| subjectTo |
MLB collective bargaining agreement
ⓘ
MLB evaluation and grading system ⓘ |
| supervisedBy |
MLB Commissioner’s Office
ⓘ
surface form:
MLB umpiring department
|
| typicallyTrainedAt | professional umpire school ⓘ |
| uses |
ball–strike indicator
ⓘ
chest protector ⓘ plate brush ⓘ umpire mask ⓘ |
| usesTechnology | instant replay review system ⓘ |
| wears |
numbered sleeve patch
ⓘ
standardized MLB umpire uniform ⓘ |
| workLocation | Major League Baseball ballparks ⓘ |
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: Major League Baseball umpires Description of subject: Major League Baseball umpires are the professional officials responsible for enforcing the rules, making judgment calls on plays, and maintaining order during MLB games.
Referenced by (21)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Joe West
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpire crew
this entity surface form:
National League umpiring staff
this entity surface form:
MLB umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
American League umpiring staff
this entity surface form:
Major League Baseball umpiring corps
this entity surface form:
American League umpiring staff
this entity surface form:
Major League Baseball umpiring staff
this entity surface form:
Major League Baseball umpire corps