45.
In a certain code language,
A + B means βA is the son of Bβ,
A β B means βA is the wife of Bβ,
A Γ B means βA is the brother of Bβ,
A Γ· B means βA is the mother of Bβ.
Based on the above, how is R related to T if βP Γ Q Γ· R β S + Tβ?