If X + Y means X is the daughter of Y, X * Y means X is the son of Y and X-Y means X is the wife of Y, then in the expression Z * T - S * U - P, What is U to Z? IN SLIDE SHARE code example

Example: If X + Y means “X is the daughter of Y”, X * Y means “X is the son of Y” and X-Y means “X is the wife of Y”, then in the expression “Z * T - S * U - P”, What is U to Z?

If X + Y means “X is the daughter of Y”, X * Y means “X is the son of Y” and X-Y means “X is the wife of Y”, then in the expression “Z * T - S * U - P”, What is U to Z?