context: It is probable that Mary dropped the apple. It is probably not the case that Jeff discarded the milk. There is almost no chance that Winona is a mouse. Chances are slight that if either Jeff discarded the milk, or Mary dropped the apple, then John went to the garden. We doubt that if either Mary dropped the apple, or Winona is a mouse, then Sandra put down the milk. Chances are slight that if either Mary dropped the apple, or Winona is a mouse, then Julius is green.
hypothesis: It is probably not the case that john went to the garden, or Jeff discarded the milk.
valid_hypothesis: It is probably not the case that john went to the garden, or Jeff discarded the milk.
invalid_hypothesis: There is a very good chance that john went to the garden, or Jeff discarded the milk.
hypothesis_assertion: John went to the garden, or Jeff discarded the milk.