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Despite the fully complementary hydrogen bonding groups to guanine , MCND did not bind to guanine - guanine mismatch but did to adenine - adenine mismatch .
 Chemical: hydrogen; Chemical: guanine; Chemical: MCND; Chemical: guanine; Chemical: guanine; Chemical: adenine; Chemical: adenine
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: hydrogen; Chemical: guanine; Chemical: MCND; Chemical: guanine; Chemical: guanine; Chemical: adenine; Chemical: adenine