8007
CBMs that bind beta - glucan chains often display broad specificity recognizing beta 1 , 4 - glucans ( cellulose ) , beta 1 , 3 - beta 1 , 4 - mixed linked glucans and xyloglucan , a beta 1 , 4 - glucan decorated with alpha 1 , 6 - xylose residues , by targeting structures common to the three polysaccharides .
 Chemical: alpha 1 , 6 - xylose
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: alpha 1 , 6 - xylose