22130
Although OTA is twisted with respect to the base in the nucleobase model , addition of the deoxyribose sugar induces a further twist and restricts rotation about the C - C linkage due to close contacts between OTA and the sugar .
 Chemical: OTA; Chemical: nucleobase; Chemical: deoxyribose sugar; Chemical: C - C; Chemical: OTA
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: OTA; Chemical: nucleobase; Chemical: deoxyribose sugar; Chemical: C - C; Chemical: OTA