3320
We found that both NS1738 and PNU - 120596 significantly reduced thermal hyperalgesia , while only PNU - 120596 significantly reduced edema caused by a hind paw infusion of carrageenan .
 Chemical: NS1738; Chemical: PNU - 120596; Chemical: PNU - 120596
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: NS1738; Chemical: PNU - 120596; Chemical: PNU - 120596