Tell me whether these are nouns or proper nouns: United States of America, playground, rope, St. Petersburg, Miami, ocean
United States of America: Proper Noun
Playground: Noun
Rope: Noun
St. Petersburg: Proper Noun
Miami: Proper Noun
Ocean: Noun
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: Tell me whether these are nouns or proper nouns: United States of America, playground, rope, St. Petersburg, Miami, ocean
### Input: 
### Response: United States of America: Proper Noun
Playground: Noun
Rope: Noun
St. Petersburg: Proper Noun
Miami: Proper Noun
Ocean: Noun