context: It is unlikely that Winona is a mouse. It is improbable that Brian is a frog. It is unlikely that Lily is white. It is probable that if Brian is a frog, and Winona is a mouse, then Mary left the apple. It is improbable that if Brian is a frog, and Winona is a mouse, then John put down the apple. Chances are about even that if Lily is white, and Brian is a frog, then Greg is green.
hypothesis: It is almost certain that winona is a mouse, or Brian is a frog.
valid_hypothesis: It is probably not the case that winona is a mouse, or Brian is a frog.
invalid_hypothesis: It is almost certain that winona is a mouse, or Brian is a frog.
hypothesis_assertion: Winona is a mouse, or Brian is a frog.