23375
The Mechanisms of Radical SAM / Cobalamin Methylations : An Evolving Working Hypothesis .
 Chemical: Cobalamin
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: Cobalamin 
Answer:
 Chemical: Cobalamin