5.3.1.16 Construction of sections

condition: On the edges \( A A_{1}, B B_{1}, A C, B_{1} C_{1} \) and \( A_{1} C_{1} \) of the prism \( A B C A_{1} B_{1} C_{1} \) the points \( P, Q, R, U, V\). Construct the line of intersection of the planes \( P Q C \) and \( B R V \).