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In Iran , usually students are required to present a thesis ( " pāyān-nāmeh " ) in their master 's degree and a dissertation ( " resāleh " ) in their Doctorate degree , both of which requiring the students to defend their research before a committee and gaining their approval .
 location: Iran
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: Iran 
Answer:
 location: Iran