context: We doubt that Brian is a rhino. It is probably not the case that John went to the garden. It is probably the case that Sandra grabbed the milk.
hypothesis: We believe that sandra grabbed the milk, or John went to the garden.
valid_hypothesis: We believe that sandra grabbed the milk, or John went to the garden.
invalid_hypothesis: It is probably not the case that sandra grabbed the milk, or John went to the garden.
hypothesis_assertion: Sandra grabbed the milk, or John went to the garden.