1851
He had been taking disulfiram for alcohol dependence for the preceding 3 years .
 Chemical: disulfiram; Disease: alcohol dependence
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: disulfiram; Disease: alcohol dependence