4441
Our previous NMR titration experiments showed that the alpha sugar - binding site is a high - affinity site and the gamma sugar - binding site is a low - affinity site .
 Chemical: sugar; Chemical: sugar
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: sugar; Chemical: sugar