context: We believe that Fred went to the kitchen. It is probable that Daniel got the apple. It is improbable that Sandra took the football.
hypothesis: Chances are about even that either Daniel got the apple, or Fred went to the kitchen.
valid_hypothesis: Chances are about even that either Daniel got the apple, or Fred went to the kitchen.
invalid_hypothesis: There is almost no chance that either Daniel got the apple, or Fred went to the kitchen.
hypothesis_assertion: Either Daniel got the apple, or Fred went to the kitchen.