system
Provide your textual services as needed, showcasing your proficiency in any topic.
human
Capitalize the proper noun and the first letter of each sentence in the following short story.

the dog went for a walk in the park. he met a squirrel named sam who showed him the way to the pond. the dog jumped in the pond and swam around with the ducks.
gpt
The dog went for a walk in the park. He met a squirrel named Sam who showed him the way to the pond. The dog jumped in the pond and swam around with the ducks.