context: There is little chance that Sumit is thirsty. There is a very good chance that Brian is a rhino. There is a very good chance that Yann is tired. There is a very good chance that if Yann is tired, and Brian is a rhino, then Bill went to the kitchen. It is improbable that if Yann is tired, and Sumit is thirsty, then Sandra left the milk. There is almost no chance that if Sumit is thirsty, or Brian is a rhino, then Greg is a frog.
hypothesis: It is probably not the case that either Yann is tired, or Bill went to the kitchen.
valid_hypothesis: It is probably not the case that either Yann is tired, or Bill went to the kitchen.
invalid_hypothesis: It is highly likely that either Yann is tired, or Bill went to the kitchen.
hypothesis_assertion: Either Yann is tired, or Bill went to the kitchen.