context: There is almost no chance that Emily is a mouse. It is almost certain that Julius is a swan. It is highly likely that Sandra took the milk. There is little chance that if Emily is a mouse, or Sandra took the milk, then John moved to the garden. Chances are slight that if either Sandra took the milk, or Julius is a swan, then Sumit is thirsty. We believe that if Sandra took the milk, or Julius is a swan, then Mary went to the office.
hypothesis: It is improbable that either Emily is a mouse, or Julius is a swan.
valid_hypothesis: It is almost certain that either Emily is a mouse, or Julius is a swan.
invalid_hypothesis: It is improbable that either Emily is a mouse, or Julius is a swan.
hypothesis_assertion: Either Emily is a mouse, or Julius is a swan.