PR articles should lead readers to think about a particular problem and offer it a solution. The solution will be in the form of a product, service, brand or opinion that promotes the article. The reader will gain the desire to learn more or purchase the product, and will visit the website to which it links hyperlinks.
The backlinks that PR articles contain are effective for SEO, and sufficiently relevant. Such articles and links will help you in two ways. They direct you to leads, customers and readers, and will increase the value of your pages and their position with Internet search engines.
The structure suitable for PR articles is similar to how to write texts on websites and e-shops. Every website where these articles can be published for free or for consideration has its own rules and criteria for how the text should look, so it needs to be adapted a little.