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These results demonstrate that both prostaglandin D2 and prostaglandin E2 exert hyperalgesia in the spinal cord , but in different ways .
 Chemical: prostaglandin D2; Chemical: prostaglandin E2; Disease: hyperalgesia
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; Chemical: prostaglandin E2; Disease: hyperalgesia