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The standout original songs in the musical were It Could Happen To You ( song ) sung by Dorothy Lamour , which quickly became a pop standard and " His Rocking Horse Ran Away , " which became one of Betty Hutton 's most popular numbers .
 person: Dorothy Lamour; person: Betty Hutton
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: Dorothy Lamour, Betty Hutton 
Answer:
 person: Dorothy Lamour; person: Betty Hutton