YOU SAID:

The person wearing this is a gandu

INTO JAPANESE

これを着ている人はガンドゥです

BACK INTO ENGLISH

The person wearing this is Gandu

INTO JAPANESE

これを着ているのはガンドゥ

BACK INTO ENGLISH

The one wearing this is Gandu.

INTO JAPANESE

これを着ているのはガンドゥです。

BACK INTO ENGLISH

This is Gandu wearing it.

INTO JAPANESE

これを着ているのがガンドゥです。

BACK INTO ENGLISH

This is Gandu wearing it.