YOU SAID:

the person who is sitting next to me is a big idiot

INTO JAPANESE

私の隣に座っている人は大きなバカです

BACK INTO ENGLISH

The person sitting next to me is a big idiot.

INTO JAPANESE

私の隣に座っている人はばかです。

BACK INTO ENGLISH

The person sitting next to me is an aunt.

INTO JAPANESE

私の隣に座っている人は叔母です。

BACK INTO ENGLISH

The person sitting next to me is my aunt.

INTO JAPANESE

私の隣に座っている人は私の叔母です。

BACK INTO ENGLISH

The person sitting next to me is my aunt.