context: It is probable that Julius is a lion. It is improbable that Mary took the apple. It is probably the case that Greg is white. It is probable that if Mary took the apple, or Greg is white, then Bernhard is white. It is likely that if Julius is a lion, and Greg is white, then Yann is tired. It is improbable that if Julius is a lion, or Greg is white, then Brian is a lion.
hypothesis: Chances are about even that mary took the apple, or Yann is tired.
valid_hypothesis: Chances are about even that mary took the apple, or Yann is tired.
invalid_hypothesis: It is impossible that mary took the apple, or Yann is tired.
hypothesis_assertion: Mary took the apple, or Yann is tired.