3495
Azathioprine treatment benefited 19 ( 66 % ) out of 29 patients suffering from severe psoriasis .
 Chemical: Azathioprine; Disease: psoriasis
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: Azathioprine, psoriasis 
Answer:
 Chemical: Azathioprine; Disease: psoriasis