compartment k1 E P j1 E_P_1 compartment k10 P2 compartment k7 E P21 j7 E_P21 compartment k7a E P2 j7a E_P2 compartment k8 E_P21 compartment k8a E_P2 compartment kC1 E_P_1 compartment kC2 E_P_2 compartment k2 E_P_1 compartment k9 M compartment k3 E M1 j3 E_M1 compartment k3a E M j3a E_M compartment k4 E_M1 compartment k4a E_M compartment k5 E P j5 E_P_2 compartment k6 E_P_2