1953
Frequency of generalized tonic - clonic seizures increased from one per 6 months to two per month .
 Disease: tonic - clonic seizures
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: tonic - clonic seizures 
Answer:
 Disease: tonic - clonic seizures