context: It is certain that John picked up the apple. There is almost no chance that Greg is a lion. It is certain that Sandra grabbed the milk. There is a better than even chance that if Sandra grabbed the milk, and Greg is a lion, then Lily is a rhino. There is almost no chance that if either John picked up the apple, or Sandra grabbed the milk, then Julius is green. Chances are slight that if Sandra grabbed the milk, and John picked up the apple, then Mary moved to the garden.
hypothesis: Chances are about even that lily is a rhino, and Greg is a lion.
valid_hypothesis: There is almost no chance that lily is a rhino, and Greg is a lion.
invalid_hypothesis: Chances are about even that lily is a rhino, and Greg is a lion.
hypothesis_assertion: Lily is a rhino, and Greg is a lion.