context: Chances are slight that Yann is tired. It is certain that Sandra got the football. It is highly unlikely that Mary moved to the garden.
hypothesis: There is a better than even chance that yann is tired, and Sandra got the football.
valid_hypothesis: There is little chance that yann is tired, and Sandra got the football.
invalid_hypothesis: There is a better than even chance that yann is tired, and Sandra got the football.
hypothesis_assertion: Yann is tired, and Sandra got the football.