Given a list of words, remove duplicate words and output the list with unique words.
Elephant, Elephant, Mouse, Cat, Rat, Rat
The unique words in the list are: Elephant, Mouse, Cat, Rat.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a list of words, remove duplicate words and output the list with unique words.

### Input:
Elephant, Elephant, Mouse, Cat, Rat, Rat

### Output:
The unique words in the list are: Elephant, Mouse, Cat, Rat.