Generate a mnemonic for remembering this list of items.
red, blue, green, yellow
Red rabbits, Blue birds, Green gorillas, Yellow yaks.
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a mnemonic for remembering this list of items.

### Input:
red, blue, green, yellow

### Output:
Red rabbits, Blue birds, Green gorillas, Yellow yaks.