context: It is certain that Lily is green. It is highly unlikely that Greg is yellow. Chances are about even that Julius is white. There is a very good chance that if Julius is white, and Lily is green, then Bernhard is a rhino. There is little chance that if Julius is white, or Lily is green, then Sandra dropped the milk. It is certain that if Greg is yellow, and Julius is white, then Mary went to the bedroom.
hypothesis: There is almost no chance that greg is yellow, and Mary went to the bedroom.
valid_hypothesis: There is almost no chance that greg is yellow, and Mary went to the bedroom.
invalid_hypothesis: It is certain that greg is yellow, and Mary went to the bedroom.
hypothesis_assertion: Greg is yellow, and Mary went to the bedroom.