context: It is highly unlikely that Lily is a lion. It is unlikely that Greg is a frog. There is a better than even chance that Brian is gray.
hypothesis: It is improbable that brian is gray, or Greg is a frog.
valid_hypothesis: It is probably the case that brian is gray, or Greg is a frog.
invalid_hypothesis: It is improbable that brian is gray, or Greg is a frog.
hypothesis_assertion: Brian is gray, or Greg is a frog.