Select the relation and press Add Button.

What relation is your sister's brother's aunt's niece to you ?

What relation is your sister's father's daughter's brother's mother in law to you ?

What relation is your uncle's son's aunt's nephew to you ?

What relation is your son's uncle's sister's brother in law to you ?

What relation is your father's sister's brother's son to you ?

What relation is your mother's brother's cousin's daughter to you ?