Anchor: The motivational aspects of a variety of screens, with and without verbal or computer feedback, need to be explored.
Entailed: The ways in which screens can motivate is an angle in need of exploration.
Contradiction: There's no need to examine the motivational aspects of screens any more than has already been done.
Contradiction: The cat jumps off the fridge.
Contradiction: I know the paints do not have any lead in them anymore.
Contradiction: Department stores in Japan have pretty much nothing to offer. 
Contradiction: There are some kids in this picture