2670
Prostaglandin D2 ( 0 . 5 - 3 ng / mouse ) had a hyperalgesic action on the response to a hot plate during a 3 - 60 min period after injection .
 Chemical: Prostaglandin D2; Disease: hyperalgesic
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Prostaglandin D2; Disease: hyperalgesic