21321
Moreover , while CORM - 2 or CoPP treatments did not alter or reduced the antinociceptive effects of morphine during acute and visceral pain , both treatments improved the local antiallodynic and antihyperalgesic effects of morphine after chronic inflammatory or neuropathic pain in WT , but not in KO mice .
 Chemical: CORM - 2; Chemical: CoPP; Chemical: morphine; Chemical: morphine
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: CORM - 2; Chemical: CoPP; Chemical: morphine; Chemical: morphine