9959
C5 - Ethynylbenzenesulfonamide - modified nucleotide ( EBNA ) was investigated as substrate of various DNA polymerases .
 Chemical: C5 - Ethynylbenzenesulfonamide - modified nucleotide; Chemical: EBNA
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: C5 - Ethynylbenzenesulfonamide - modified nucleotide, EBNA 
Answer:
 Chemical: C5 - Ethynylbenzenesulfonamide - modified nucleotide; Chemical: EBNA