context: It is likely that Julius is a lion. It is highly likely that Mary went to the office. Chances are slight that John picked up the apple. There is almost no chance that if Mary went to the office, or John picked up the apple, then Bernhard is a frog. It is certain that if John picked up the apple, or Julius is a lion, then Greg is a swan. It is probably not the case that if either Julius is a lion, or Mary went to the office, then Brian is gray.
hypothesis: We believe that john picked up the apple, or Greg is a swan.
valid_hypothesis: We believe that john picked up the apple, or Greg is a swan.
invalid_hypothesis: It is highly unlikely that john picked up the apple, or Greg is a swan.
hypothesis_assertion: John picked up the apple, or Greg is a swan.