context: Chances are about even that Daniel left the milk. We believe that Bernhard is a frog. It is improbable that Bill moved to the office. It is highly likely that if Bernhard is a frog, and Bill moved to the office, then Mary went to the kitchen. Chances are slight that if Daniel left the milk, or Bernhard is a frog, then Julius is green. We believe that if Daniel left the milk, and Bill moved to the office, then Greg is gray.
hypothesis: We believe that bill moved to the office, or Bernhard is a frog.
valid_hypothesis: We believe that bill moved to the office, or Bernhard is a frog.
invalid_hypothesis: There is little chance that bill moved to the office, or Bernhard is a frog.
hypothesis_assertion: Bill moved to the office, or Bernhard is a frog.