context: There is a very good chance that Lily is a frog. It is highly likely that Brian is a swan. It is certain that Julie is in the kitchen. Chances are slight that if either Lily is a frog, or Brian is a swan, then Greg is a rhino. It is probably not the case that if Brian is a swan, and Lily is a frog, then Jessica is a cat. It is highly likely that if either Brian is a swan, or Julie is in the kitchen, then Mary put down the milk.
hypothesis: It is highly likely that greg is a rhino, and Brian is a swan.
valid_hypothesis: There is almost no chance that greg is a rhino, and Brian is a swan.
invalid_hypothesis: It is highly likely that greg is a rhino, and Brian is a swan.
hypothesis_assertion: Greg is a rhino, and Brian is a swan.