Anchor:  Dave hinted at having nearly reached the solution, giving her only a bit of his wild idea of welding the sky.
Entailed: Dave hinted he had reached a solution; welding the sky. 
Contradiction: Dave had not come to solution to fix the sky. 
Contradiction: I will go read a book.
Contradiction: A stroller is being manipulated.
Contradiction: We aren't in the market for a boat. 
Contradiction: People enjoy a ride a Coney Island.