Give an example of a compound sentence that uses subordination as a method of combining sentences.
Although I had a lot of work to do, I decided to take a break and go for a walk in the park.
Complete the following task based on the instruction and optional input provided.### Instruction:
Give an example of a compound sentence that uses subordination as a method of combining sentences.

### Output:
Although I had a lot of work to do, I decided to take a break and go for a walk in the park.