context: It is highly unlikely that Brian is a rhino. There is almost no chance that Jeff went to the kitchen. We believe that Antoine is hungry. There is a very good chance that if Antoine is hungry, and Brian is a rhino, then Mary dropped the apple. It is probably the case that if Brian is a rhino, or Jeff went to the kitchen, then Gertrude is a sheep. We believe that if Antoine is hungry, and Jeff went to the kitchen, then John discarded the milk.
hypothesis: We believe that either Antoine is hungry, or Gertrude is a sheep.
valid_hypothesis: We believe that either Antoine is hungry, or Gertrude is a sheep.
invalid_hypothesis: It is probably not the case that either Antoine is hungry, or Gertrude is a sheep.
hypothesis_assertion: Either Antoine is hungry, or Gertrude is a sheep.