Anchor: it's real pretty i went rock climbing one time
Entailed: I've been rock climbing one time.
Contradiction: I'm scared of heights and don't go climbing.
Contradiction: The anticipated surpluses offer no chance to meet pent-up demand for discretionary domestic spending.
Contradiction: Some boats driving on the water.
Contradiction: Several people sit and look out a bay window.
Contradiction: a skateboarder in a green shirt is taking a jump.