context: It is probably the case that Emily is a sheep. There is little chance that Sandra left the football. It is almost certain that Greg is yellow.
hypothesis: It is highly likely that either Sandra left the football, or Greg is yellow.
valid_hypothesis: It is highly likely that either Sandra left the football, or Greg is yellow.
invalid_hypothesis: It is highly unlikely that either Sandra left the football, or Greg is yellow.
hypothesis_assertion: Either Sandra left the football, or Greg is yellow.