context: Chances are about even that Lily is green. It is probably the case that Julius is a swan. It is likely that Greg is white. It is certain that if either Greg is white, or Julius is a swan, then Fred moved to the office. It is highly unlikely that if Julius is a swan, and Lily is green, then Brian is a frog. There is almost no chance that if Lily is green, and Julius is a swan, then Mary went to the kitchen.
hypothesis: Chances are about even that either Greg is white, or Julius is a swan.
valid_hypothesis: Chances are about even that either Greg is white, or Julius is a swan.
invalid_hypothesis: It is highly unlikely that either Greg is white, or Julius is a swan.
hypothesis_assertion: Either Greg is white, or Julius is a swan.