context: There is a very good chance that Lily is a rhino. It is highly likely that Mary went to the office. It is highly unlikely that Julius is gray. Chances are slight that if either Mary went to the office, or Julius is gray, then Sandra dropped the apple. It is highly unlikely that if Mary went to the office, or Julius is gray, then Brian is a frog. It is impossible that if Lily is a rhino, or Mary went to the office, then Bernhard is green.
hypothesis: There is a very good chance that brian is a frog, or Sandra dropped the apple.
valid_hypothesis: There is little chance that brian is a frog, or Sandra dropped the apple.
invalid_hypothesis: There is a very good chance that brian is a frog, or Sandra dropped the apple.
hypothesis_assertion: Brian is a frog, or Sandra dropped the apple.