context: It is improbable that Sandra got the apple. It is certain that Mary left the milk. It is highly likely that John dropped the milk.
hypothesis: Chances are slight that either Mary left the milk, or John dropped the milk.
valid_hypothesis: Chances are slight that either Mary left the milk, or John dropped the milk.
invalid_hypothesis: It is highly likely that either Mary left the milk, or John dropped the milk.
hypothesis_assertion: Either Mary left the milk, or John dropped the milk.