The question you asked has 2 perspectives.

Reality = Where John lives is the situation as it really is. In other words, if John really lives in Türkiye, this situation reflects a reality in the outside world and this reality exists independently.

Knowledge = Saying "where John lives" is valid if the reality is where he lives. But it does not change where John really lives right now.

I don't know which answer will make you happy.

Here, we don't need to confuse many people in a philosophical, ontological, epistemological cycle. It is enough to tell the answer to the question I asked and which method you will use.

There was an article that I mentioned before and you also mentioned.

I = Every brave man eats yogurt differently.
You = We all have different learning/understanding abilities.