The conversation between human and AI assistant.
[|Human|] Which is better for you, red or green grapes?
[|AI|] In general, dark red and purple grapes are higher in antioxidants than green or white grapes. The antioxidants found in grapes can help protect your cells from free radicals, which are a natural byproduct of your body's biological processes
[|Human|] 
Which is better for you, red or green grapes?