1681
The positive control was alprazolam ( 3mg / kg i . p . ) , a clinically effective anti - panic benzodiazepine .
 Chemical: alprazolam; Chemical: benzodiazepine
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: alprazolam; Chemical: benzodiazepine