Donkey, sorry, have to correct your definition on facts and opinions. An opinion can never be true or false. It is merely subjective. A fact can be proven true or false. Opinions are judgement, and facts are based on things that can be seen, heard, touched, tasted, smelled. In other words, facts are observed, and if they are true for one person, they will be true for another person, all the time, period.
And by the way, relative facts are not facts at all, but merely opinions that are masquerading as facts.