context: We believe that Daniel is in the garden. There is a better than even chance that Bernhard is a swan. It is unlikely that Greg is yellow. Chances are about even that if either Daniel is in the garden, or Greg is yellow, then Mary went to the hallway. It is unlikely that if Daniel is in the garden, and Bernhard is a swan, then Brian is white. There is a better than even chance that if Greg is yellow, or Bernhard is a swan, then Julius is a frog.
hypothesis: Chances are about even that either Mary went to the hallway, or Julius is a frog.
valid_hypothesis: Chances are about even that either Mary went to the hallway, or Julius is a frog.
invalid_hypothesis: There is almost no chance that either Mary went to the hallway, or Julius is a frog.
hypothesis_assertion: Either Mary went to the hallway, or Julius is a frog.