Anchor: Spectators on a rocky, grassy beach sit and watch events unfolding on a lake.
Entailed: The spectators are outside.
Contradiction: The spectators are driving home from the baseball game.
Contradiction: Lines 5 through 8 show the effect of changing the method of repayment for loans.
Contradiction: Lacking wind resistance is one such weakness of the fleece material. 
Contradiction: Nobody is working.
Contradiction: The simulations are easy.