context: There is almost no chance that Fred is in the office. It is highly unlikely that Mary went to the garden. It is unlikely that Yann got the milk there. It is almost certain that if Yann got the milk there, and Mary went to the garden, then Winona is a wolf. Chances are slight that if Mary went to the garden, or Fred is in the office, then Lily is green. It is unlikely that if Yann got the milk there, and Mary went to the garden, then Julius is a swan.
hypothesis: It is certain that either Fred is in the office, or Mary went to the garden.
valid_hypothesis: It is highly unlikely that either Fred is in the office, or Mary went to the garden.
invalid_hypothesis: It is certain that either Fred is in the office, or Mary went to the garden.
hypothesis_assertion: Either Fred is in the office, or Mary went to the garden.