context: There is a very good chance that Mary went to the office. It is likely that Lily is green. It is impossible that Greg is a rhino.
hypothesis: There is almost no chance that either Mary went to the office, or Lily is green.
valid_hypothesis: Chances are about even that either Mary went to the office, or Lily is green.
invalid_hypothesis: There is almost no chance that either Mary went to the office, or Lily is green.
hypothesis_assertion: Either Mary went to the office, or Lily is green.