context: It is probable that Jeff went to the kitchen. It is impossible that Greg is a swan. It is highly likely that Lily is yellow. There is almost no chance that if Lily is yellow, or Greg is a swan, then Brian is a rhino. There is little chance that if Lily is yellow, and Jeff went to the kitchen, then Bernhard is green. It is unlikely that if Greg is a swan, and Lily is yellow, then Mary is in the garden.
hypothesis: It is probably the case that brian is a rhino, or Jeff went to the kitchen.
valid_hypothesis: It is probably the case that brian is a rhino, or Jeff went to the kitchen.
invalid_hypothesis: Chances are slight that brian is a rhino, or Jeff went to the kitchen.
hypothesis_assertion: Brian is a rhino, or Jeff went to the kitchen.