Anchor: Some guy laying blue tarp on a roof.
Entailed: A guy lay tarp on a roof.
Contradiction: A guy lay a yellow tarp on a roof.
Contradiction: The people are playing tennis.
Contradiction: Stock options are not a useful instrument in the actual market. 
Contradiction: A snowboarder goes down the hill.
Contradiction: Her mother did not think it mattered that she stole.