7578
The number 42 was officially retired by Major League Baseball in 1997 , but Mo Vaughn was one of a handful of players to continue wearing # 42 through a grandfather clause .
 organization: Major League Baseball; person: Mo Vaughn
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Major League Baseball; person: Mo Vaughn