context: It is almost certain that Julius is a rhino. Chances are slight that Greg is a frog. It is certain that Mary put down the apple.
hypothesis: There is little chance that greg is a frog, and Julius is a rhino.
valid_hypothesis: There is little chance that greg is a frog, and Julius is a rhino.
invalid_hypothesis: We believe that greg is a frog, and Julius is a rhino.
hypothesis_assertion: Greg is a frog, and Julius is a rhino.