4640
The most oxidizable base in DNA is 2 - deoxyguanosine ( dG ) , and the primary oxidation products are 8 - oxodG and 2 - amino - imidazolone .
 Chemical: 2 - deoxyguanosine; Chemical: 8 - oxodG; Chemical: 2 - amino - imidazolone
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: 2 - deoxyguanosine; Chemical: 8 - oxodG; Chemical: 2 - amino - imidazolone