context: We doubt that Mary left the apple. There is little chance that Lily is a swan. It is likely that Bernhard is gray. It is unlikely that if either Bernhard is gray, or Mary left the apple, then Brian is a rhino. It is highly likely that if Mary left the apple, and Bernhard is gray, then Greg is a frog. There is little chance that if either Mary left the apple, or Bernhard is gray, then Jeff went to the garden.
hypothesis: It is probable that bernhard is gray, or Jeff went to the garden.
valid_hypothesis: It is probable that bernhard is gray, or Jeff went to the garden.
invalid_hypothesis: Chances are slight that bernhard is gray, or Jeff went to the garden.
hypothesis_assertion: Bernhard is gray, or Jeff went to the garden.