context: We believe that Julius is a frog. It is probable that Bill dropped the milk. There is a better than even chance that Gertrude is a mouse. It is impossible that if either Julius is a frog, or Gertrude is a mouse, then Greg is green. It is improbable that if either Bill dropped the milk, or Gertrude is a mouse, then Sandra left the apple. There is almost no chance that if either Julius is a frog, or Bill dropped the milk, then Fred went to the garden.
hypothesis: It is probable that fred went to the garden, and Sandra left the apple.
valid_hypothesis: It is impossible that fred went to the garden, and Sandra left the apple.
invalid_hypothesis: It is probable that fred went to the garden, and Sandra left the apple.
hypothesis_assertion: Fred went to the garden, and Sandra left the apple.