Assertion: northern cardinal | /r/CapableOf | eat sorrel
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Source sentences:
text: The northern cardinal eats a wide variety of seeds (including those from pine trees, smartweed, bindweed, foxtail, dock, thistle, chickweed, button weed, sorrel, and a great variety of grasses), fruits (including grapes, dogwood fruit, blackberries, cherries, and raspberries), and even the buds of some trees (including elm and chokecherry).