15291
Escherichia coli cells appear to possess mechanisms to prevent misincorporation of 8 - oxo - 7 , 8 - dihydroguanine into RNA .
 Chemical: 8 - oxo - 7 , 8 - dihydroguanine
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: 8 - oxo - 7 , 8 - dihydroguanine