Anchor: A elderly father and his grown son are preparing for a camping trip in the wild.
Entailed: A father and son are going camping.
Contradiction: A mother and daughter are drinking coffee at the kitchen table.
Contradiction: The musicians are banging on garbage can lids in an alley.
Contradiction: Mrs. Vandemeyer didn't look surprised. 
Contradiction: the baby is asleep
Contradiction: We had a motorcycle group before having children.