context: It is highly unlikely that Julius is white. It is impossible that Bill went to the garden. Chances are slight that John got the apple. It is likely that if John got the apple, or Bill went to the garden, then Brian is white. It is probably not the case that if Julius is white, or Bill went to the garden, then Greg is a rhino. It is probable that if either Julius is white, or John got the apple, then Bernhard is a lion.
hypothesis: Chances are slight that either Julius is white, or Brian is white.
valid_hypothesis: Chances are slight that either Julius is white, or Brian is white.
invalid_hypothesis: It is highly likely that either Julius is white, or Brian is white.
hypothesis_assertion: Either Julius is white, or Brian is white.