context: It is highly likely that Mary went to the garden. We believe that Greg is green. There is almost no chance that Julius is gray. It is probably the case that if either Greg is green, or Mary went to the garden, then John picked up the apple. There is little chance that if Mary went to the garden, and Greg is green, then Brian is a lion. It is highly unlikely that if Julius is gray, and Greg is green, then Bill got the milk there.
hypothesis: It is certain that julius is gray, and John picked up the apple.
valid_hypothesis: It is impossible that julius is gray, and John picked up the apple.
invalid_hypothesis: It is certain that julius is gray, and John picked up the apple.
hypothesis_assertion: Julius is gray, and John picked up the apple.