context: It is highly unlikely that Lily is a swan. It is almost certain that Greg is a frog. We doubt that Brian is a lion.
hypothesis: Chances are slight that brian is a lion, or Greg is a frog.
valid_hypothesis: It is almost certain that brian is a lion, or Greg is a frog.
invalid_hypothesis: Chances are slight that brian is a lion, or Greg is a frog.
hypothesis_assertion: Brian is a lion, or Greg is a frog.