1321
Their ester prodrugs 6 and 8 were orally active in three models of pain : reversal of formalin - induced paw licking , carrageenan - induced thermal hyperalgesia , and capsaicin - induced mechanical hyperalgesia .
 Disease: pain; Chemical: formalin; Chemical: carrageenan; Disease: thermal hyperalgesia; Chemical: capsaicin; Disease: mechanical 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:
 Disease: pain; Chemical: formalin; Chemical: carrageenan; Disease: thermal hyperalgesia; Chemical: capsaicin; Disease: mechanical hyperalgesia