context: We believe that Greg is a frog. It is highly likely that John went to the garden. We believe that Lily is yellow. It is highly likely that if either Lily is yellow, or Greg is a frog, then Fred is in the bedroom. It is probable that if either Greg is a frog, or Lily is yellow, then Emily is a mouse. It is highly likely that if either Lily is yellow, or Greg is a frog, then Mary put down the milk.
hypothesis: We believe that either Mary put down the milk, or Greg is a frog.
valid_hypothesis: We believe that either Mary put down the milk, or Greg is a frog.
invalid_hypothesis: There is almost no chance that either Mary put down the milk, or Greg is a frog.
hypothesis_assertion: Either Mary put down the milk, or Greg is a frog.