Anchor: Come in, said Cynthia, in a sharp professional tone. 
Entailed: Cynthia was welcoming, but very businesslike.
Contradiction: Before they could enter Cynthia swiftly closed the door on them.
Contradiction: There is no lower limit to how far unit costs can be reduced with enough volume.
Contradiction: The man is in orage
Contradiction: A hiker stands on top of a mountain.
Contradiction: People are in a boat.