12443
PNU - 282987 on the other hand displayed an increase in anxiety - like behavior at a higher dose ( 10 mg / kg ) that was significantly reduced by the serotonin 5 - HT1a receptor antagonist WAY - 100135 .
 Chemical: PNU - 282987; Chemical: WAY - 100135
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: PNU - 282987; Chemical: WAY - 100135