Facts, Inference and Opinion.

Nowadays, people make the mistakes of referring to inferences and opinions has the facts because, Inferences are derived from our opinions and so it brings people to the conclusion that it is the facts because It has some reflection of the facts in it...

Here are my own Personal Definition of:

Facts

Is simply something that has been proven to be true, it stands has it is and never change.

Inferences

It's an assumption and most times it is mistakenly taken for the facts.

Probably because it has some little reflection from the main fact itself.

Opinions

This is a personal thought you give to something.

It can also be refers to has you own points of view on an issue.