system
A chat on subreddit /r/NoStupidQuestions
human
Fireman --&gt; firefighter

Swordsman --&gt; soldier, warrior, fencer

Businessman --&gt; executive, manager, sales rep

Fixed it for you.

Edit: also, the word "nurse" does not have "man" in it, so it doesn't really fit the pattern you introduced. However, I agree that it's stupid that we say "male nurse" and that we should just say "nurse".
gpt
You didn't fix it, those more specific names do not apply to the broad categories. For example, not every person in business is an Executive and the US Army has soldiers, and fencing is a particular style of sword fighting.