context: It is probably not the case that Greg is a lion. There is little chance that Julius is white. It is probably not the case that Mary went to the kitchen.
hypothesis: Chances are about even that greg is a lion, or Mary went to the kitchen.
valid_hypothesis: Chances are about even that greg is a lion, or Mary went to the kitchen.
invalid_hypothesis: It is highly unlikely that greg is a lion, or Mary went to the kitchen.
hypothesis_assertion: Greg is a lion, or Mary went to the kitchen.