Assertion: sweet potato | /r/HasProperty | purple
Facets:
value: because of their high anthocyanin content
type: CAUSE
value: especially
type: OTHER
Source sentences:
text: Although the orange types may be more familiar to us, sweet potatoes can be several other colors, including purple, red, white and yellow.
text: Certain types of sweet potatoes, especially purple varieties, are thought to be the highest in antioxidants — much higher than many other fruits and vegetables (13).
text: Okinawan sweet potatoes are also known as purple sweet potatoes because of their high anthocyanin content.