Rewrite a given sentence to avoid repetition of words
Independence Day is a day to celebrate our nation's nation's independence.
Independence Day is an occasion to commemorate our country's freedom.
Complete the following task based on the instruction and optional input provided.### Instruction:
Rewrite a given sentence to avoid repetition of words

### Input:
Independence Day is a day to celebrate our nation's nation's independence.

### Output:
Independence Day is an occasion to commemorate our country's freedom.