15456
A triphosphate of d4T - 6PEG - TIBO conjugate was successfully synthesized that is recognized as a substrate by HIV - 1 RT and incorporated into a double - stranded DNA .
 Chemical: triphosphate; Chemical: d4T - 6PEG - TIBO
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: triphosphate; Chemical: d4T - 6PEG - TIBO