What is the daughter of a sister of the father

Bet, you don't always know immediately who is actually who is related to whom? So...

BASE:
Uncle's or aunt's daughter.

COUSIN:
This is the cousin.

COUSIN:
This is the base.

PARENTS:
Father and mother.

GRANDSON:
The child of a son or daughter.

GRANDPARENTS:
These are the parents of the parents.

GRAND-GRANDNEEPE:
The son of a nephew or niece.

GREAT NOTES:
The daughter of a nephew or niece.

GREAT UNCLEE:
The grandfather's brother or grandmother.

GREAT AUNT:
The sister of grandfathers or grandmothers.

NEPHEW:
The brother or sister's son.

NIECE:
The daughter of the brother or sister.

UNCLE:
The brother of the father or the mother.

BROTHER IN LAW:
The sister's husband, wife or spouse's brother.

SISTER IN LAW:
Brother's wife.

SON IN LAW:
The daughter's husband.

DAUGHTER IN LAW:
The son's wife.

SCHWIPPSCHWAGER:
The husband of the wife's sister or the husband.

SCHWIPPSWÄGERIN:
The wife of the wife's brother or husband.

SON:
Male Child of his parents.

AUNT:
The sister of the father or mother.

DAUGHTER:
Female Child of her parents.

GRAND:
The children of the grandchildren.

Great grandparents:
The parents of the grandparents.

COUSIN:
Uncle's or aunt's son.