context: It is improbable that Julius is a swan. It is impossible that Greg is white. There is almost no chance that Brian is a lion. We believe that if either Greg is white, or Julius is a swan, then Mary moved to the garden. Chances are about even that if Brian is a lion, and Julius is a swan, then John picked up the apple. Chances are slight that if Brian is a lion, or Greg is white, then Antoine is hungry.
hypothesis: Chances are slight that either Mary moved to the garden, or Antoine is hungry.
valid_hypothesis: Chances are slight that either Mary moved to the garden, or Antoine is hungry.
invalid_hypothesis: There is a better than even chance that either Mary moved to the garden, or Antoine is hungry.
hypothesis_assertion: Either Mary moved to the garden, or Antoine is hungry.