context: There is a very good chance that Mary went to the office. It is highly unlikely that Lily is a swan. We doubt that Greg is a rhino.
hypothesis: We believe that either Mary went to the office, or Lily is a swan.
valid_hypothesis: We believe that either Mary went to the office, or Lily is a swan.
invalid_hypothesis: There is little chance that either Mary went to the office, or Lily is a swan.
hypothesis_assertion: Either Mary went to the office, or Lily is a swan.