context: It is likely that Winona is a wolf. Chances are slight that Greg is gray. It is probably the case that John moved to the garden. It is almost certain that if Winona is a wolf, or Greg is gray, then Lily is a frog. It is probably not the case that if John moved to the garden, and Greg is gray, then Mary went to the kitchen. We doubt that if Greg is gray, and Winona is a wolf, then Bill is in the school.
hypothesis: It is likely that either Winona is a wolf, or Lily is a frog.
valid_hypothesis: It is highly unlikely that either Winona is a wolf, or Lily is a frog.
invalid_hypothesis: It is likely that either Winona is a wolf, or Lily is a frog.
hypothesis_assertion: Either Winona is a wolf, or Lily is a frog.