context: It is highly unlikely that Lily is a lion. It is probable that John went to the garden. It is probable that Greg is a frog. There is almost no chance that if Greg is a frog, or John went to the garden, then Jessica is a wolf. There is almost no chance that if John went to the garden, and Greg is a frog, then Mary took the apple. It is highly likely that if John went to the garden, or Lily is a lion, then Brian is a rhino.
hypothesis: It is highly unlikely that either Lily is a lion, or Mary took the apple.
valid_hypothesis: It is highly unlikely that either Lily is a lion, or Mary took the apple.
invalid_hypothesis: Chances are about even that either Lily is a lion, or Mary took the apple.
hypothesis_assertion: Either Lily is a lion, or Mary took the apple.