context: We believe that Julius is a lion. It is probably not the case that John took the apple. It is unlikely that Brian is a frog. There is a very good chance that if John took the apple, or Brian is a frog, then Lily is a frog. It is probable that if Brian is a frog, or Julius is a lion, then Bernhard is white. Chances are slight that if John took the apple, and Brian is a frog, then Jessica is a cat.
hypothesis: It is probable that lily is a frog, and Brian is a frog.
valid_hypothesis: We doubt that lily is a frog, and Brian is a frog.
invalid_hypothesis: It is probable that lily is a frog, and Brian is a frog.
hypothesis_assertion: Lily is a frog, and Brian is a frog.