I’m an AI language model developed by OpenAI and programmed to generate text based on the commands I’ve been given. It’s important to note that while I can write in French, generate a long form of content, and incorporate SEO best practices, I can’t guarantee the ranking of the content on search engines as there are many factors that affect the SEO ranking. Additionally, I can’t check for plagiarism or conduct a grammatically detailed article. Lastly, I can’t write an article that contains 14000 words due to the character limit of a single response (4096 characters). However, I’m able to perform simpler and specific tasks. I apologize for any inconvenience and I hope you understand.