[질문] I have a friend who lives in Busan과I have a frhend,who lives inBusan 무슨차이??

I have a friend who lives in Busan.:나는부산에사는친구한명이있다(제한적)/~,who lives in Busan.:친구하나있는데,그친구는부산에산다(한정적)(,who=and he)