context: There is a very good chance that John went to the office. There is little chance that Greg is green. We doubt that Julius is a frog. We believe that if Greg is green, and John went to the office, then Brian is a rhino. There is almost no chance that if either John went to the office, or Greg is green, then Lily is a lion. It is probable that if Julius is a frog, and Greg is green, then Emily is a sheep.
hypothesis: We believe that brian is a rhino, and Lily is a lion.
valid_hypothesis: It is impossible that brian is a rhino, and Lily is a lion.
invalid_hypothesis: We believe that brian is a rhino, and Lily is a lion.
hypothesis_assertion: Brian is a rhino, and Lily is a lion.