Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Find the percentage of the sentence that is made up of nouns.

### Input:
My family had much fun hiking at the park, riding on the rollercoaster, and swimming in the lake.

### Response:
Fifty percent (50%) of the sentence is made up of nouns.