Anchor: But I don't know that I ought, , " Dorcas hesitated. 
Entailed: Dorcas hesitated. 
Contradiction: Dorcas did not hesitate. 
Contradiction: A bird is sitting on a tree
Contradiction: There is a person who is moving quickly.
Contradiction: A man is helping his mother up the stairs.
Contradiction: A man is holding onto a fishing net.