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The purified anthocyanin extract ( ART ) from the fruits of R . tomentosa showed strong antioxidant activities , including DPPH radical - scavenging capacity , ABTS radical scavenging capacity , reducing power and oxygen radical absorbance capacity ( ORAC ) .
 Chemical: anthocyanin; Chemical: DPPH; Chemical: ABTS; Chemical: oxygen
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: anthocyanin; Chemical: DPPH; Chemical: ABTS; Chemical: oxygen