1851
He had been taking disulfiram for alcohol dependence for the preceding 3 years .
 Chemical: disulfiram; Disease: alcohol dependence
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: disulfiram, alcohol dependence 
Answer:
 Chemical: disulfiram; Disease: alcohol dependence