Example post:
title (str) : post titledate (str) : post datequestion (str): question contentquestion_likes (str) : number of likes for this postcategory(str): question category (only store the last category, not the whole hierarchy)answers_list List[str]: answers’ text in a list, order should be randomized, answer be aware of additional answers in page 2, 3 …best_answer (int) : index of the best answer in above answers_listanswers_likes List[int] : corresponding to answers in answers_list