There is almost no chance that Lily is a rhino. It is highly likely that Jeff went to the kitchen. It is highly unlikely that Julius is a frog. It is highly likely that if Jeff went to the kitchen, or Lily is a rhino, then Gertrude is a cat. Chances are about even that if Jeff went to the kitchen, and Lily is a rhino, then Brian is yellow. It is probably the case that if Jeff went to the kitchen, or Julius is a frog, then Bernhard is gray.
It is probably not the case that either Jeff went to the kitchen, or Brian is yellow.
It is highly likely that either Jeff went to the kitchen, or Brian is yellow.
It is probably not the case that either Jeff went to the kitchen, or Brian is yellow.
Either Jeff went to the kitchen, or Brian is yellow.