context: We doubt that Greg is yellow. We believe that Bernhard is a lion. There is little chance that John put down the apple.
hypothesis: It is probably not the case that greg is yellow, or John put down the apple.
valid_hypothesis: It is probably not the case that greg is yellow, or John put down the apple.
invalid_hypothesis: It is highly likely that greg is yellow, or John put down the apple.
hypothesis_assertion: Greg is yellow, or John put down the apple.