6602
For this purpose , the combined effect of 23 - methyl - 6 - O - desmethylauricepyrone ( 1 ) , quercetin ( 2 ) and 3 - O - methylquercetin ( 3 ) , obtained through bioguided fractionation from A . satureioides ethanol extract , was evaluated against Staphylococcus aureus and Escherichia coli .
 Chemical: 23 - methyl - 6 - O - desmethylauricepyrone; Chemical: quercetin; Chemical: 3 - O - methylquercetin; Chemical: ethanol
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: 23 - methyl - 6 - O - desmethylauricepyrone; Chemical: quercetin; Chemical: 3 - O - methylquercetin; Chemical: ethanol