context: We believe that Mary is in the garden. We doubt that Sandra took the apple. It is probable that Bernhard is white. We doubt that if either Mary is in the garden, or Bernhard is white, then Brian is yellow. It is impossible that if Mary is in the garden, and Bernhard is white, then John moved to the office. It is unlikely that if Mary is in the garden, or Bernhard is white, then Julius is a swan.
hypothesis: It is probable that either Mary is in the garden, or Sandra took the apple.
valid_hypothesis: It is probable that either Mary is in the garden, or Sandra took the apple.
invalid_hypothesis: Chances are slight that either Mary is in the garden, or Sandra took the apple.
hypothesis_assertion: Either Mary is in the garden, or Sandra took the apple.