3960
Our results indicate that type II alpha 7 nAChR PAM PNU - 120596 , but not type I alpha 7 nAChR PAM NS1738 , shows significant antinociception effects in persistent pain models in mice .
 Chemical: PNU - 120596; Chemical: NS1738
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 - 120596; Chemical: NS1738