22993
We utilize an electronically sufficiently complete DNA sugar - phosphate - sugar ( ) backbone model system truncated to prevent undesired intramolecular interactions .
 Chemical: sugar; Chemical: phosphate; Chemical: sugar
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: sugar; Chemical: phosphate; Chemical: sugar