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We propose that naturally occurring compounds such as flavonoids , which are present in fruit juices , may increase the potency of warfarin by competing for the enzymes that normally inactivate warfarin .
 Chemical: flavonoids; Chemical: warfarin; Chemical: warfarin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: flavonoids; Chemical: warfarin; Chemical: warfarin