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Centrally acting alpha - 2 adrenergic agonists are one of several pharmacologic agents used in the treatment of spasticity related to disorders of the central nervous system .
 Disease: spasticity; Disease: disorders of the central nervous system
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: spasticity, disorders of the central nervous system 
Answer:
 Disease: spasticity; Disease: disorders of the central nervous system