Anchor: A man on a motor cross bike jumping a dirt mound.
Entailed: A man is riding his motor cross bike.
Contradiction: A man is working on his motor cross bike.
Contradiction: A man wearing gloves is walking along a street.
Contradiction: Normal orbits were the only theoretical courses necessitated.
Contradiction: Some jockeys are brushing their horses in the stalls.
Contradiction: Since I have a background in electronics I said I would bite and asked why he didn't like it.