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In rodent models , AQP4 appears plays a role in both the development and resolution of the cerebral edema that occurs following an injury like TBI or stroke and around brain tumors .
 disease: cerebral edema
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: cerebral edema 
Answer:
 disease: cerebral edema