context: It is improbable that Mary is in the garden. Chances are about even that Julius is yellow. We believe that John picked up the apple. There is almost no chance that if Julius is yellow, and Mary is in the garden, then Bernhard is a swan. It is impossible that if Mary is in the garden, or Julius is yellow, then Bill went to the office. It is likely that if Julius is yellow, or John picked up the apple, then Greg is white.
hypothesis: Chances are about even that julius is yellow, or Bernhard is a swan.
valid_hypothesis: Chances are about even that julius is yellow, or Bernhard is a swan.
invalid_hypothesis: It is almost certain that julius is yellow, or Bernhard is a swan.
hypothesis_assertion: Julius is yellow, or Bernhard is a swan.