context: There is little chance that Brian is green. It is improbable that Mary is in the garden. It is impossible that Bill went to the cinema. It is unlikely that if either Brian is green, or Mary is in the garden, then John took the apple. We believe that if Bill went to the cinema, and Brian is green, then Lily is yellow. It is improbable that if Mary is in the garden, or Brian is green, then Daniel dropped the milk.
hypothesis: We believe that either Mary is in the garden, or Daniel dropped the milk.
valid_hypothesis: Chances are slight that either Mary is in the garden, or Daniel dropped the milk.
invalid_hypothesis: We believe that either Mary is in the garden, or Daniel dropped the milk.
hypothesis_assertion: Either Mary is in the garden, or Daniel dropped the milk.