4547
Down - regulation of 8 - oxoguanine DNA glycosylase 1 expression in the airway epithelium ameliorates allergic lung inflammation .
 Chemical: 8 - oxoguanine
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 - oxoguanine