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San Antonio Rose is a 1941 American black-and-white musical film starring Jane Frazee and featuring Lon Chaney , Jr. and Shemp Howard as a faux Abbott and Costello ; it was also designed as a showcase for the then-popular vocal group The Merry Macs .
 location: American; person: Jane Frazee; person: Lon Chaney , Jr.; person: Shemp Howard
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: American, Jane Frazee, Lon Chaney , Jr., Shemp Howard 
Answer:
 location: American; person: Jane Frazee; person: Lon Chaney , Jr.; person: Shemp Howard