context: There is almost no chance that Sandra left the football. It is improbable that Greg is green. It is improbable that John picked up the apple. It is certain that if either John picked up the apple, or Greg is green, then Mary went to the kitchen. It is certain that if Greg is green, and John picked up the apple, then Bill dropped the milk. It is probably not the case that if either John picked up the apple, or Greg is green, then Julius is gray.
hypothesis: It is likely that sandra left the football, and Greg is green.
valid_hypothesis: It is impossible that sandra left the football, and Greg is green.
invalid_hypothesis: It is likely that sandra left the football, and Greg is green.
hypothesis_assertion: Sandra left the football, and Greg is green.