context: There is a better than even chance that Julius is a frog. It is certain that John went to the office. It is almost certain that Lily is yellow. We believe that if Julius is a frog, or John went to the office, then Bernhard is a frog. It is probably not the case that if either Lily is yellow, or John went to the office, then Mary left the apple. Chances are about even that if either Julius is a frog, or Lily is yellow, then Brian is a swan.
hypothesis: There is a better than even chance that either Brian is a swan, or Bernhard is a frog.
valid_hypothesis: There is a better than even chance that either Brian is a swan, or Bernhard is a frog.
invalid_hypothesis: It is highly unlikely that either Brian is a swan, or Bernhard is a frog.
hypothesis_assertion: Either Brian is a swan, or Bernhard is a frog.