22131
The nucleoside model preferentially adpots a syn orientation ( by 10 - 20 kJ mol ( - 1 ) depending on the OTA conformation ) due to the presence of an O5 ' - H . . . N3 interaction .
 Chemical: nucleoside; Chemical: OTA; Chemical: H
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: nucleoside; Chemical: OTA; Chemical: H