Tell which pairs of congruent parts and what method (SSS, ASA, AAS, or HL) you would use to prove the triangles are congruent.
Given: $\angle 1 \cong \angle 2 ; \angle 3 \cong \angle 4 ; \overline{Q R} \cong \overline{T S}$
$\triangle Q P R \cong \triangle T P S$ by what method?