In order to demonstrate the more general applicability of RL in the context of CSP, the study was expanded to include another CSP code MC-EMMA . The original EMMA code was designed to identify the crystal structures of oxides by assembly of layered units, and was crucial in the structure determination of the phase Y2.24Ba2.28Ca3.48Fe7.44Cu0.56O21 , with a subsequent version with implementing a BH search (MC-EMMA) used to identify Y0.07Sr1.01Ca1.55Ga2.87O7 and Y0.038Sr0.32Ca0.848Ga0.794O2.416 in the Y-Sr-Ca-Ga-O phase field , and so the code is established and well developed.