YOU SAID:

I am the son of a son that is the son of son

INTO JAPANESE

私は息子の息子である息子の息子です

BACK INTO ENGLISH

I'm a son of a son, a son of a son

INTO JAPANESE

私は息子の息子、息子の息子です

BACK INTO ENGLISH

I'm a son's son, a son's son

INTO JAPANESE

私は息子の息子、息子の息子です

BACK INTO ENGLISH

I'm a son's son, a son's son