If it's trying to state a fact, yes. Although a fact is just something that needs evidence to prove it. Unless they're lying or genuinely remembering it wrong, it's correct.
Is it based on fact or a thought?
Where did the fact come from? And so on.
Opinions about ontological/objective things/facts can be wrong, like "In my opinion, the earth is flat." Opinions about preferences or other subjective things like "Strawberry is the best flavor of ice cream" can't be wrong.