Anchor: The differences among All, Wisk, and Tide were not great, but they were noticeable and surprising.
Entailed: There were noticeable differences between All, Wisk, and Tide.
Contradiction: All, Wisk, and Tide were essentially the same.
Contradiction: There was no number.
Contradiction: There is more than one tennis player.
Contradiction: I would not recommend taking them to see the Liberty Bell. 
Contradiction: The ski slopes are open.