context: Chances are about even that Greg is yellow. There is almost no chance that Emily is a cat. It is highly likely that Brian is gray.
hypothesis: It is certain that either Emily is a cat, or Greg is yellow.
valid_hypothesis: Chances are about even that either Emily is a cat, or Greg is yellow.
invalid_hypothesis: It is certain that either Emily is a cat, or Greg is yellow.
hypothesis_assertion: Either Emily is a cat, or Greg is yellow.