context: It is highly unlikely that Greg is white. It is highly likely that Bernhard is a swan. It is highly likely that Brian is a frog. There is a very good chance that if Bernhard is a swan, or Brian is a frog, then Julius is yellow. There is little chance that if either Brian is a frog, or Bernhard is a swan, then Daniel left the football. It is probably the case that if Bernhard is a swan, or Greg is white, then Sandra dropped the milk.
hypothesis: It is highly unlikely that greg is white, or Daniel left the football.
valid_hypothesis: It is highly unlikely that greg is white, or Daniel left the football.
invalid_hypothesis: It is probably the case that greg is white, or Daniel left the football.
hypothesis_assertion: Greg is white, or Daniel left the football.