Anchor: Two men on a blue canoe in the middle of a large body of water.
Entailed: two guys in a canoe on some water
Contradiction: Women are in a canoe.
Contradiction: two people row a machine indoors
Contradiction: Two men drowning in the middle of the ocean.
Contradiction: A woman is riding a jet ski.
Contradiction: Two men have caught a large catfish and hold it up proudly for others to see.