context: It is probably not the case that Sandra got the football. There is little chance that Bernhard is a frog. There is a very good chance that Greg is gray.
hypothesis: It is probably the case that sandra got the football, and Greg is gray.
valid_hypothesis: We doubt that sandra got the football, and Greg is gray.
invalid_hypothesis: It is probably the case that sandra got the football, and Greg is gray.
hypothesis_assertion: Sandra got the football, and Greg is gray.