12692
Thirty - five subjects with major depressive disorder and alcohol dependence were recruited and randomly assigned into 17 aripiprazole + escitalopram and 18 escitalopram only groups .
 Chemical: alcohol; Chemical: aripiprazole; Chemical: escitalopram; Chemical: escitalopram
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: alcohol; Chemical: aripiprazole; Chemical: escitalopram; Chemical: escitalopram