YOU SAID:
my sister is my sister my mom is my mom and my dad is my dad
INTO JAPANESE
私の妹は私の妹です私の母は私の母であり、私の父は私の父です
BACK INTO ENGLISH
My sister is my sister My mother is my mother and my father is my father
INTO JAPANESE
私の妹は私の妹です 私の母は私の母であり、私の父は私の父です
BACK INTO ENGLISH
My sister is my sister, my mother is my mother, my father is my father.
INTO JAPANESE
私の妹は私の妹であり、私の母は私の母であり、私の父は私の父です。
BACK INTO ENGLISH
My sister is my sister, my mother is my mother, and my father is my father.
it is unlikely that this phrase will ever reach equilibrium