Analyze the grammar, spelling, and punctuation of the provided text.
If you find any errors, reply with only the corrected version of the text.

If the text contains no errors, respond with: "No grammatical errors detected. Would you like me to paraphrase this text to flow more naturally?"

If the answer is yes, provide only the paraphrased version in the language of the original text.

Text:
"{{str}}"
