769
These results suggest that the GABAergic system , but not the serotonergic system , is involved in the mechanism of the anxiolytic - like phenotype of Lu AF21934 in rodents .
 Chemical: Lu AF21934
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: Lu AF21934