context: It is almost certain that Lily is green. There is little chance that Brian is white. We believe that Greg is a swan. It is probable that if Brian is white, or Lily is green, then Julius is a rhino. It is probable that if either Brian is white, or Lily is green, then Bernhard is a frog. It is impossible that if Greg is a swan, and Brian is white, then Mary went to the garden.
hypothesis: There is a better than even chance that either Mary went to the garden, or Bernhard is a frog.
valid_hypothesis: There is a better than even chance that either Mary went to the garden, or Bernhard is a frog.
invalid_hypothesis: There is almost no chance that either Mary went to the garden, or Bernhard is a frog.
hypothesis_assertion: Either Mary went to the garden, or Bernhard is a frog.