12907
Oxytocin ( 1 mu g / 0 . 2 mu l ) , vasotocin , an oxytocin antagonist ( 1 mu g / 0 . 2 mu l ) or vehicle was injected into the CeA 20 min before the BVE .
 Chemical: Oxytocin; Chemical: vasotocin; Chemical: oxytocin
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: Oxytocin; Chemical: vasotocin; Chemical: oxytocin