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BACKGROUND : Preclinical studies of intrathecal adenosine suggest it may be effective in the treatment of acute and chronic pain in humans , and preliminary studies in volunteers and patients with a Swedish formulation of adenosine suggests it may be effective in hypersensitivity states but not with acute noxious stimulation .
 Chemical: adenosine; Disease: acute and chronic pain; Chemical: adenosine; Disease: hypersensitivity
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: adenosine; Disease: acute and chronic pain; Chemical: adenosine; Disease: hypersensitivity