context: It is almost certain that Bernhard is a frog. It is improbable that Gertrude is a cat. It is almost certain that Mary picked up the apple. It is probable that if Bernhard is a frog, and Gertrude is a cat, then Jessica is a mouse. It is improbable that if Mary picked up the apple, or Gertrude is a cat, then John left the football. It is probable that if Gertrude is a cat, and Bernhard is a frog, then Sandra got the milk.
hypothesis: It is highly likely that either Jessica is a mouse, or John left the football.
valid_hypothesis: It is improbable that either Jessica is a mouse, or John left the football.
invalid_hypothesis: It is highly likely that either Jessica is a mouse, or John left the football.
hypothesis_assertion: Either Jessica is a mouse, or John left the football.