YOU SAID:
emma rozek is my best friend
INTO JAPANESE
エマ rozek 私の親友です。
BACK INTO ENGLISH
It is a close friend of Emma rozek I.
INTO JAPANESE
Rozek エマの親友は私。
BACK INTO ENGLISH
Rozek Emma's best friend is me.
INTO JAPANESE
Rozek エマの親友は、私です。
BACK INTO ENGLISH
Rozek Emma's best friend is me.
You've done this before, haven't you.