context: It is impossible that Jeff dropped the apple. There is a very good chance that Brian is a rhino. It is probably the case that Lily is a lion. There is a better than even chance that if either Lily is a lion, or Brian is a rhino, then Julius is a frog. It is likely that if either Brian is a rhino, or Lily is a lion, then Bill went to the kitchen. We believe that if either Jeff dropped the apple, or Brian is a rhino, then Jessica is a sheep.
hypothesis: We believe that either Brian is a rhino, or Julius is a frog.
valid_hypothesis: We believe that either Brian is a rhino, or Julius is a frog.
invalid_hypothesis: It is impossible that either Brian is a rhino, or Julius is a frog.
hypothesis_assertion: Either Brian is a rhino, or Julius is a frog.