Provide an example of a sentence structure with a noun clause.
"Whoever finishes first will win the prize" is an example of a sentence structure with a noun clause. In this sentence, "whoever finishes first" acts as a noun clause serving as the subject of the sentence.
Complete the following task based on the instruction and optional input provided.### Instruction:
Provide an example of a sentence structure with a noun clause.

### Output:
"Whoever finishes first will win the prize" is an example of a sentence structure with a noun clause. In this sentence, "whoever finishes first" acts as a noun clause serving as the subject of the sentence.