context: It is probably the case that Lily is a swan. There is a very good chance that Julius is a lion. There is a better than even chance that Jeff went to the office.
hypothesis: Chances are about even that either Jeff went to the office, or Lily is a swan.
valid_hypothesis: Chances are about even that either Jeff went to the office, or Lily is a swan.
invalid_hypothesis: It is almost certain that either Jeff went to the office, or Lily is a swan.
hypothesis_assertion: Either Jeff went to the office, or Lily is a swan.