context: There is a better than even chance that John moved to the office. It is improbable that Lily is a swan. There is almost no chance that Julius is green. Chances are about even that if Julius is green, or Lily is a swan, then Brian is yellow. We doubt that if John moved to the office, or Lily is a swan, then Greg is a frog. Chances are about even that if Lily is a swan, or John moved to the office, then Mary dropped the apple.
hypothesis: It is impossible that either Lily is a swan, or John moved to the office.
valid_hypothesis: There is a better than even chance that either Lily is a swan, or John moved to the office.
invalid_hypothesis: It is impossible that either Lily is a swan, or John moved to the office.
hypothesis_assertion: Either Lily is a swan, or John moved to the office.