YOU SAID:
Hello. I am my mother's son's sister and my brother's father's daughter.
INTO JAPANESE
こんにちは。私は母の息子の妹で、弟の父の娘です。
BACK INTO ENGLISH
Hello. I am the sister of my mother's son, my daughter of my brother's father.
INTO JAPANESE
こんにちは。私は母の息子、私の兄弟の父の娘です。
BACK INTO ENGLISH
Hello. I am my mother's son, my brother's father's daughter.
INTO JAPANESE
こんにちは。私は母の息子、私の兄の父の娘です。
BACK INTO ENGLISH
Hello. I am my mother's son, my daughter's father's daughter.
INTO JAPANESE
こんにちは。私は母の息子、私の娘の父の娘です。
BACK INTO ENGLISH
Hello. I am the daughter of my mother's son, my daughter's father.
INTO JAPANESE
こんにちは。私は母の息子、私の娘の父の娘です。
BACK INTO ENGLISH
Hello. I am the daughter of my mother's son, my daughter's father.
That didn't even make that much sense in English.