Anchor: Other distinctions are possible, such as bulk and nonbulk, but the speed distinction would seem to dominate.
Entailed: Bulk and nonbulk are other distinctions.
Contradiction: Other distinctions are not possible, 
Contradiction: A doctor drives to work.
Contradiction: A man has flower pots nearby.
Contradiction: The overweight man is jumping up and down on the bench.
Contradiction: Walcott knows that this is not a fact of history.