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The main opening and ending themes are performed by the , a unit consisting of the four main voice actresses , Minami Tsuda , Rumi Ōkubo , Shiori Mikami and Yuka Ōtsubo .
 person: Minami Tsuda; person: Rumi Ōkubo; person: Shiori Mikami; person: Yuka Ōtsubo
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: Minami Tsuda, Rumi Ōkubo, Shiori Mikami, Yuka Ōtsubo 
Answer:
 person: Minami Tsuda; person: Rumi Ōkubo; person: Shiori Mikami; person: Yuka Ōtsubo