Chances are slight that John went to the kitchen. We doubt that Bernhard is a swan. It is highly likely that Lily is a rhino. It is almost certain that if Bernhard is a swan, and John went to the kitchen, then Julius is green. It is almost certain that if Lily is a rhino, and John went to the kitchen, then Greg is yellow. There is a better than even chance that if either Bernhard is a swan, or Lily is a rhino, then Brian is gray.
It is highly likely that greg is yellow, and Brian is gray.
It is highly unlikely that greg is yellow, and Brian is gray.
It is highly likely that greg is yellow, and Brian is gray.
Greg is yellow, and Brian is gray.