It is almost certain that Gertrude is a mouse. It is impossible that Greg is gray. It is probable that Julius is a frog. It is certain that if Greg is gray, and Gertrude is a mouse, then Mary went to the bedroom. It is certain that if either Greg is gray, or Gertrude is a mouse, then Lily is a lion. It is almost certain that if either Julius is a frog, or Greg is gray, then Brian is yellow.
It is likely that greg is gray, and Brian is yellow.
It is impossible that greg is gray, and Brian is yellow.
It is likely that greg is gray, and Brian is yellow.
Greg is gray, and Brian is yellow.