19439
TS - targeted siRNAs were designed that contained 5 - fluoro - 2 ' - deoxyuridine ( FdU ) moieties at various locations within the siRNA .
 Chemical: 5 - fluoro - 2 ' - deoxyuridine; Chemical: FdU
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: 5 - fluoro - 2 ' - deoxyuridine, FdU 
Answer:
 Chemical: 5 - fluoro - 2 ' - deoxyuridine; Chemical: FdU