21971
We have designed and evaluated a series of hydroxamate based inhibitors which explore the SAR of substitutions directed into the UDP pocket with a range of substituted alpha - amino acid based linkers .
 Chemical: hydroxamate; Chemical: UDP; Chemical: alpha - amino acid
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: hydroxamate, UDP, alpha - amino acid 
Answer:
 Chemical: hydroxamate; Chemical: UDP; Chemical: alpha - amino acid