0 -> T_1
0 -> T_2
T_1 -> 0
T_1 -> 0
T_1 -> 0
T_2 -> 0
T_2 -> 0
0 -> E_1_Innate
E_1_Innate -> 0
E_1_Innate -> 0
0 -> E_1_Innate
0 -> E_2_Adaptive
E_2_Adaptive -> 0
E_2_Adaptive -> 0