YOU SAID:
my dad is a piece of nicness
INTO JAPANESE
私の父は優しさの持ち主である
BACK INTO ENGLISH
My father is the bearer of kindness
INTO JAPANESE
私の父は優しさの持ち主です
BACK INTO ENGLISH
My father is a kind man.
INTO JAPANESE
私の父は親切な人です。
BACK INTO ENGLISH
My father is a kind man.
That didn't even make that much sense in English.