Anchor: A group of people white water raft on very choppy water.
Entailed: a couple was there
Contradiction: the birds were short necked
Contradiction: No once cares about mandrakes.
Contradiction: The child is playing with toys.
Contradiction: You are one of many he can turn to when the government gets shut down. 
Contradiction: The total GDP consumption of total Medicare spending by 2035 is depicted in Figure 4.5.