12099
Three of these sites ( Knuckles , NNRTI Adjacent , and Incoming Nucleotide Binding ) are inhibitory and provide opportunities for discovery of new anti - AIDS drugs .
 Chemical: Nucleotide
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: Nucleotide