context: We doubt that Sandra got the football. It is probably not the case that Lily is green. It is impossible that Julius is a lion. It is highly unlikely that if Lily is green, or Julius is a lion, then Greg is a rhino. It is probable that if Julius is a lion, or Lily is green, then John went to the hallway. It is improbable that if Julius is a lion, or Sandra got the football, then Mary is in the school.
hypothesis: We doubt that either John went to the hallway, or Greg is a rhino.
valid_hypothesis: We doubt that either John went to the hallway, or Greg is a rhino.
invalid_hypothesis: It is probable that either John went to the hallway, or Greg is a rhino.
hypothesis_assertion: Either John went to the hallway, or Greg is a rhino.