context: Chances are about even that Brian is green. We believe that John picked up the apple. Chances are slight that Bernhard is gray. There is almost no chance that if John picked up the apple, and Bernhard is gray, then Daniel took the football. It is improbable that if John picked up the apple, and Brian is green, then Emily is a mouse. It is unlikely that if Brian is green, and Bernhard is gray, then Jason is bored.
hypothesis: Chances are about even that daniel took the football, and John picked up the apple.
valid_hypothesis: It is impossible that daniel took the football, and John picked up the apple.
invalid_hypothesis: Chances are about even that daniel took the football, and John picked up the apple.
hypothesis_assertion: Daniel took the football, and John picked up the apple.