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In September 2015 , Karen Gillan , Patton Oswalt , Bill Paxton , and Ellar Coltrane joined the cast .
 person: Karen Gillan; person: Patton Oswalt; person: Bill Paxton; person: Ellar Coltrane
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Karen Gillan, Patton Oswalt, Bill Paxton, Ellar Coltrane 
Answer:
 person: Karen Gillan; person: Patton Oswalt; person: Bill Paxton; person: Ellar Coltrane