context: It is probably not the case that Sandra got the apple. Chances are about even that Greg is yellow. There is little chance that Lily is white.
hypothesis: Chances are about even that either Greg is yellow, or Sandra got the apple.
valid_hypothesis: Chances are about even that either Greg is yellow, or Sandra got the apple.
invalid_hypothesis: It is impossible that either Greg is yellow, or Sandra got the apple.
hypothesis_assertion: Either Greg is yellow, or Sandra got the apple.