907
The antidepressant trazodone is a 5 - HT 2A / 2C receptor antagonist .
 Chemical: trazodone; Chemical: 5 - HT
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: trazodone; Chemical: 5 - HT