(a) Smooth billiard balls roll quickly.
(b) Psychopathic discontinuous functions differentiate easily.
(a) John is eager to please.
(b) John is easy to please.
(a) Jump.
(b) Fire.
(c) Red.
(a) I don't have none.
(b) I ain't got none.
(a) One of my children's friends is sick.
(b) One of my children's friend is sick.
(a) The box is in the pen.
(b) The ink is in the pen.