Anchor: A group of men holding shovels and wearing hats are cleaning up a mess on the sidewalk.
Entailed: The men are cleaning up the sidewalk.
Contradiction: The women are digging a ditch.
Contradiction: The people are enjoying tea.
Contradiction: The person is surfing.
Contradiction: Tuppence never could forget his name. 
Contradiction: The raft is in the water.