context: There is almost no chance that Bill is in the park. It is probably the case that Bernhard is a swan. There is a better than even chance that Fred went to the bedroom.
hypothesis: It is likely that either Bill is in the park, or Bernhard is a swan.
valid_hypothesis: It is likely that either Bill is in the park, or Bernhard is a swan.
invalid_hypothesis: It is improbable that either Bill is in the park, or Bernhard is a swan.
hypothesis_assertion: Either Bill is in the park, or Bernhard is a swan.