Anchor: You can choose to spend your day with hundreds of other people, or have the sand all to yourself at a remote spot.
Entailed: You can either share the beach with hundreds of others or be alone in a secluded spot.
Contradiction: All the beaches will be crowded with people and there is no privacy. 
Contradiction: America, from it's very conception, never had any political parties. 
Contradiction: A man is standing near the water.
Contradiction: No one fell down.
Contradiction: She went over to the window.