context: It is unlikely that Fred is in the bedroom. Chances are slight that Daniel got the milk. It is highly unlikely that Greg is a lion. It is probably not the case that if either Daniel got the milk, or Greg is a lion, then Jeff went to the kitchen. Chances are about even that if either Fred is in the bedroom, or Daniel got the milk, then Mary moved to the office. It is unlikely that if Fred is in the bedroom, and Greg is a lion, then Bernhard is a swan.
hypothesis: It is probable that greg is a lion, or Fred is in the bedroom.
valid_hypothesis: It is probably not the case that greg is a lion, or Fred is in the bedroom.
invalid_hypothesis: It is probable that greg is a lion, or Fred is in the bedroom.
hypothesis_assertion: Greg is a lion, or Fred is in the bedroom.