Incorrect Sign Boards

apes riddle
There are three cages. In one cage there are two chimpanzees. In another cage there is a chimpanzee and a gorilla. In the third cage there are two gorillas.

You are told that somebody has misplaced the sign boards corresponding to the animals and so incorrect sign boards are seen in front of each cage. Since the apes are in their respective feeding quarters no visitor can see them, but it so happened that when you happened to visit the cage you see a chimpanzee in one of the cages having the sign board chimpanzee and gorilla.

From this can you determine the correct cages of the apes?

Answer: