15640
Evidence for efficient removal of the 6 - substituent on the guanine part was provided by enzymatic studies with adenosine deaminase , and by molecular modeling of the nucleoside 5 ' - monophosphates in the catalytic site of a model of ADAL1 , thus indicating the utility of the double prodrug concept .
 Chemical: guanine; Chemical: adenosine; Chemical: nucleoside 5 ' - monophosphates
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: guanine, adenosine, nucleoside 5 ' - monophosphates 
Answer:
 Chemical: guanine; Chemical: adenosine; Chemical: nucleoside 5 ' - monophosphates