context: There is almost no chance that Lily is green. It is highly unlikely that Brian is a swan. It is almost certain that Daniel is in the garden. Chances are about even that if either Lily is green, or Daniel is in the garden, then Bernhard is a rhino. We doubt that if Lily is green, and Brian is a swan, then John took the apple. Chances are about even that if either Brian is a swan, or Daniel is in the garden, then Greg is a frog.
hypothesis: It is certain that lily is green, or Greg is a frog.
valid_hypothesis: Chances are about even that lily is green, or Greg is a frog.
invalid_hypothesis: It is certain that lily is green, or Greg is a frog.
hypothesis_assertion: Lily is green, or Greg is a frog.