context: It is probably not the case that Sandra got the football. We doubt that Lily is a rhino. It is highly unlikely that Brian is gray.
hypothesis: We believe that sandra got the football, or Brian is gray.
valid_hypothesis: It is probably not the case that sandra got the football, or Brian is gray.
invalid_hypothesis: We believe that sandra got the football, or Brian is gray.
hypothesis_assertion: Sandra got the football, or Brian is gray.