context: It is improbable that Greg is a lion. It is highly likely that Brian is green. It is likely that John went to the kitchen.
hypothesis: It is likely that either Brian is green, or John went to the kitchen.
valid_hypothesis: It is probably not the case that either Brian is green, or John went to the kitchen.
invalid_hypothesis: It is likely that either Brian is green, or John went to the kitchen.
hypothesis_assertion: Either Brian is green, or John went to the kitchen.