context: It is almost certain that Daniel took the football. Chances are about even that Mary went to the office. Chances are slight that Greg is a frog.
hypothesis: It is almost certain that greg is a frog, or Daniel took the football.
valid_hypothesis: It is almost certain that greg is a frog, or Daniel took the football.
invalid_hypothesis: There is little chance that greg is a frog, or Daniel took the football.
hypothesis_assertion: Greg is a frog, or Daniel took the football.