Requirement Documentation (PRD) for Mobile app/ website -

I am looking for WORD or PDF Documentation / PRD to pass me various requirements .. I am getting someone develop PRD to test case mapping document using AI so I need to test his code by passing various requirements documents.. Yahoo Mail APp, Uber app, Gmail App, Your bank app could be great candidates to think what needs to be tested.. You know features now let's make sure they are in PRD document so I can make sure right number of tests are created by AI