context: It is probably the case that Brian is white. There is a very good chance that Mary went to the kitchen. It is probably not the case that Emily is a sheep.
hypothesis: We doubt that emily is a sheep, or Brian is white.
valid_hypothesis: We believe that emily is a sheep, or Brian is white.
invalid_hypothesis: We doubt that emily is a sheep, or Brian is white.
hypothesis_assertion: Emily is a sheep, or Brian is white.