Anchor: Three bicyclists riding down a steep course wearing helmets.
Entailed: The bicyclists are  wearing helmets.
Contradiction: Three bicyclists are sitting at a cafe drinking tea.
Contradiction: Poirot said that he was unhappy that the woman had come.
Contradiction: The boy is in trunks.
Contradiction: All men like to go on dates with businesswomen.
Contradiction: Time has passed.