context: There is almost no chance that Mary went to the office. It is probably the case that Greg is gray. We believe that John got the football. Chances are about even that if Greg is gray, and Mary went to the office, then Bernhard is a frog. It is probably the case that if either John got the football, or Mary went to the office, then Julius is a swan. It is certain that if Mary went to the office, or John got the football, then Lily is a lion.
hypothesis: We believe that either Bernhard is a frog, or Mary went to the office.
valid_hypothesis: There is almost no chance that either Bernhard is a frog, or Mary went to the office.
invalid_hypothesis: We believe that either Bernhard is a frog, or Mary went to the office.
hypothesis_assertion: Either Bernhard is a frog, or Mary went to the office.