How to block a set of items from generation

Hi, When  article is published using bulk AI post, I would like the generated article does not include any of my competitors in the article, so what is the best way to do this?   a. Should I change ALL prompts so it does not include the competitors list? How, please provide an example. b. Should I create a shortcode and add my competitors list in the should code and then make  a prompt? How? Please provide an example.   Thanks Mike