context: It is certain that John put down the milk. Chances are slight that Greg is green. Chances are slight that Brian is a swan. We believe that if Greg is green, and Brian is a swan, then Bill went to the garden. There is almost no chance that if John put down the milk, and Brian is a swan, then Mary moved to the office. We believe that if Greg is green, or Brian is a swan, then Julius is a rhino.
hypothesis: It is highly likely that either John put down the milk, or Julius is a rhino.
valid_hypothesis: It is highly likely that either John put down the milk, or Julius is a rhino.
invalid_hypothesis: It is unlikely that either John put down the milk, or Julius is a rhino.
hypothesis_assertion: Either John put down the milk, or Julius is a rhino.