General Studies · Blood Relations

In a certain code language, 'A = B' means 'A is the sister of B', 'A B ′ means ′ AisthebrotherofB ′ , ′ A@B ′ means ′ AisthewifeofB ′ and ′ A∗B ′ means ′ AisthefatherofB ′ . HowisQrelatedtoUif ′ Q∗W=R T @ U'?