Replace the \"XXX\" in the following sentence with a meaningful sentence.
The XXX of the company is to promote sustainability.
The mission of the company is to promote sustainability.
Complete the following task based on the instruction and optional input provided.### Instruction:
Replace the \"XXX\" in the following sentence with a meaningful sentence.

### Input:
The XXX of the company is to promote sustainability.

### Output:
The mission of the company is to promote sustainability.