Anchor: A man, protected by a helmet and other protective gear, is battling his way down rough rapids in a red one-man kayak.
Entailed: There is only one man in the kayak.
Contradiction: A man is naked in a kayak.
Contradiction: A brave fellow ran out the river
Contradiction: bruce campbell enjoys tea near a river
Contradiction: The man is walking in the desert.
Contradiction: A woman protected by a helmet and other gear is in his kayak in rapids.