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After joining the faculty at Virginia , Tuttle collaborated with Randall Thompson , whom he assisted in teaching undergraduate music courses .
 person: Tuttle; person: Randall Thompson
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:
 person: Tuttle; person: Randall Thompson