10221
In virgin female rats , systemic leptin significantly excited identified oxytocin neurones with no detected effects on the patterning of activity , as reflected by hazard function analyses .
 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