python def explore_hippopotamus(facts): esoteric_info = gather_esoteric_facts_about_hippopotamus(facts); news_updates = filter_news_about_hippopotamus(esoteric_info); for update in news_updates: if update['date'] > prior_date: reinitiate_from_the_beginning(); else: withdraw_from_update_list(update); return positive_sentiments_about_hippopotamus(esoteric_info, news_updates)