context: It is likely that Mary moved to the garden. It is probable that Daniel dropped the milk. Chances are slight that Bernhard is green. It is highly unlikely that if either Bernhard is green, or Daniel dropped the milk, then John left the football. It is improbable that if either Daniel dropped the milk, or Bernhard is green, then Greg is a swan. We doubt that if Mary moved to the garden, and Daniel dropped the milk, then Lily is a lion.
hypothesis: It is probably the case that greg is a swan, or John left the football.
valid_hypothesis: Chances are slight that greg is a swan, or John left the football.
invalid_hypothesis: It is probably the case that greg is a swan, or John left the football.
hypothesis_assertion: Greg is a swan, or John left the football.