context: It is probably the case that Winona is a sheep. It is probable that Greg is white. It is probably not the case that Brian is a lion.
hypothesis: There is a very good chance that brian is a lion, or Winona is a sheep.
valid_hypothesis: There is a very good chance that brian is a lion, or Winona is a sheep.
invalid_hypothesis: We doubt that brian is a lion, or Winona is a sheep.
hypothesis_assertion: Brian is a lion, or Winona is a sheep.