11973
Elucidation of NMR data of phosphorylated kanamycin B has unambiguously demonstrated a regiospecific phosphorylation of 3 ' - hydroxyl of the 6 - aminohexose ring .
 Chemical: phosphorylated kanamycin B; Chemical: 3 ' - hydroxyl; Chemical: 6 - aminohexose
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: phosphorylated kanamycin B; Chemical: 3 ' - hydroxyl; Chemical: 6 - aminohexose