Anchor: The pebbles placed on gravestones symbolize a visit by a mourner.
Entailed: The pebbles are placed by the mourners.
Contradiction: The gravestones do not have pebbles on them.
Contradiction: Everyone agrees that English is the only language required to reach all groups.
Contradiction: The kid is exercising.
Contradiction: A man at a cafe.
Contradiction: A man is standing in front of a building.