Consider the input and output points for $A$ in the grid below:

Inputs:

Given that the tails of $u,v,w$ in the input grid and the tails of $Au,Av,Aw$ in the output grid are at their respective origins, reorder the points

$P,Q,R,S$

such that A maps $B$ to the first point on the list, $C$ to the second point on the list, $D$ to the third point on the list, and $E$ to the fourth point on the list.