context: There is a better than even chance that Bernhard is a frog. We believe that John put down the milk. Chances are slight that Mary went to the office. It is impossible that if either John put down the milk, or Mary went to the office, then Gertrude is a mouse. It is certain that if John put down the milk, and Mary went to the office, then Greg is a lion. It is almost certain that if John put down the milk, or Bernhard is a frog, then Winona is a wolf.
hypothesis: There is a better than even chance that either Bernhard is a frog, or Mary went to the office.
valid_hypothesis: There is a better than even chance that either Bernhard is a frog, or Mary went to the office.
invalid_hypothesis: It is impossible 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.