context: It is almost certain that John went to the garden. There is a better than even chance that Sandra got the football. It is probably not the case that Julius is green.
hypothesis: It is probably the case that sandra got the football, and Julius is green.
valid_hypothesis: Chances are slight that sandra got the football, and Julius is green.
invalid_hypothesis: It is probably the case that sandra got the football, and Julius is green.
hypothesis_assertion: Sandra got the football, and Julius is green.