context: It is probable that Greg is green. It is impossible that John went to the kitchen. It is unlikely that Brian is a swan.
hypothesis: It is probable that either Greg is green, or John went to the kitchen.
valid_hypothesis: It is probable that either Greg is green, or John went to the kitchen.
invalid_hypothesis: There is almost no chance that either Greg is green, or John went to the kitchen.
hypothesis_assertion: Either Greg is green, or John went to the kitchen.