context: It is impossible that Greg is green. We believe that Jessica is a mouse. It is likely that Mary went to the kitchen.
hypothesis: We doubt that mary went to the kitchen, or Greg is green.
valid_hypothesis: It is likely that mary went to the kitchen, or Greg is green.
invalid_hypothesis: We doubt that mary went to the kitchen, or Greg is green.
hypothesis_assertion: Mary went to the kitchen, or Greg is green.