context: It is impossible that Greg is green. Chances are about even that Brian is yellow. Chances are about even that Bernhard is a frog. It is probable that if Bernhard is a frog, or Greg is green, then Mary went to the garden. It is unlikely that if either Brian is yellow, or Greg is green, then John dropped the apple. Chances are about even that if Greg is green, or Brian is yellow, then Winona is a sheep.
hypothesis: It is probably not the case that john dropped the apple, or Winona is a sheep.
valid_hypothesis: It is probably not the case that john dropped the apple, or Winona is a sheep.
invalid_hypothesis: It is probably the case that john dropped the apple, or Winona is a sheep.
hypothesis_assertion: John dropped the apple, or Winona is a sheep.