2*X_1_EGFR <-> X_4_EGFR_EGFR
2*X_2_ErbB3 -> X_6_ErbB3_ErbB3
X_1_EGFR + X_2_ErbB3 -> X_5_EGFR_ErbB3
2*X_3_MET -> X_7_MET_MET
X_7_MET_MET -> X_10_p_MET_MET
X_10_p_MET_MET + X_5_EGFR_ErbB3 -> X_10_p_MET_MET + X_8_p_EGFR_ErbB3
X_10_p_MET_MET + X_6_ErbB3_ErbB3 -> X_10_p_MET_MET + X_9_p_ErbB3_ErbB3
X_8_p_EGFR_ErbB3 -> X_5_EGFR_ErbB3
X_9_p_ErbB3_ErbB3 -> X_6_ErbB3_ErbB3