context: Chances are slight that Julius is a lion. Chances are about even that Mary put down the milk. There is little chance that John went to the garden.
hypothesis: It is certain that either Mary put down the milk, or Julius is a lion.
valid_hypothesis: Chances are about even that either Mary put down the milk, or Julius is a lion.
invalid_hypothesis: It is certain that either Mary put down the milk, or Julius is a lion.
hypothesis_assertion: Either Mary put down the milk, or Julius is a lion.