context: Chances are slight that John moved to the garden. It is improbable that Mary went to the office. There is almost no chance that Jessica is a mouse. It is probable that if either Jessica is a mouse, or Mary went to the office, then Greg is gray. Chances are about even that if John moved to the garden, and Jessica is a mouse, then Bernhard is a swan. It is impossible that if either Jessica is a mouse, or Mary went to the office, then Daniel left the milk.
hypothesis: It is impossible that mary went to the office, and Daniel left the milk.
valid_hypothesis: It is impossible that mary went to the office, and Daniel left the milk.
invalid_hypothesis: There is a better than even chance that mary went to the office, and Daniel left the milk.
hypothesis_assertion: Mary went to the office, and Daniel left the milk.