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The quantity of phenols , as well as antioxidant and antimicrobial activities , were investigated in bark of Rhamnus alaternus L . , R . fallax Boiss . , R . intermedia Steud .
 Chemical: phenols
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: phenols