context: It is likely that Sandra dropped the apple. There is little chance that Bernhard is yellow. We believe that Julius is gray.
hypothesis: It is highly unlikely that julius is gray, and Sandra dropped the apple.
valid_hypothesis: Chances are about even that julius is gray, and Sandra dropped the apple.
invalid_hypothesis: It is highly unlikely that julius is gray, and Sandra dropped the apple.
hypothesis_assertion: Julius is gray, and Sandra dropped the apple.