Read the following information to answer the question.
$A\ +\ B$ means $A$ is daughter of $B$,
$A\ *\ B$ means $A$ is son of $B$ and
$A\ -\ B$ means $A$ is wife of $B$.
If $Z\ *\ T\ -\ S\ *\ U\ +P$, what is $U$ to $Z$?
- Cannot be determined