1990
CONCLUSIONS : Clonidine , used alone or with methylphenidate , appears safe and well tolerated in childhood ADHD .
 Chemical: Clonidine; Chemical: methylphenidate; Disease: ADHD
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: Clonidine, methylphenidate, ADHD 
Answer:
 Chemical: Clonidine; Chemical: methylphenidate; Disease: ADHD