context: It is probably not the case that Mary is in the kitchen. There is a very good chance that Brian is green. It is certain that Sandra left the football.
hypothesis: We believe that either Mary is in the kitchen, or Sandra left the football.
valid_hypothesis: We believe that either Mary is in the kitchen, or Sandra left the football.
invalid_hypothesis: There is little chance that either Mary is in the kitchen, or Sandra left the football.
hypothesis_assertion: Either Mary is in the kitchen, or Sandra left the football.