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On July 28 , 2015 , it was announced that Meghan Trainor would write and perform a song for the film , entitled " Better When I 'm Dancin ' " .
 person: Meghan Trainor; media: Better When I 'm Dancin '
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: Meghan Trainor, Better When I 'm Dancin ' 
Answer:
 person: Meghan Trainor; media: Better When I 'm Dancin '