context: It is probable that Sandra dropped the milk. It is impossible that Greg is a lion. There is almost no chance that Gertrude is a mouse. It is certain that if either Sandra dropped the milk, or Greg is a lion, then Brian is a rhino. It is probably not the case that if Greg is a lion, or Gertrude is a mouse, then John left the apple. It is probable that if Greg is a lion, and Sandra dropped the milk, then Bernhard is a frog.
hypothesis: It is probable that gertrude is a mouse, or Sandra dropped the milk.
valid_hypothesis: It is probable that gertrude is a mouse, or Sandra dropped the milk.
invalid_hypothesis: It is improbable that gertrude is a mouse, or Sandra dropped the milk.
hypothesis_assertion: Gertrude is a mouse, or Sandra dropped the milk.