nb1_nb2 0 0 ne1_ne2 nb1_nb2 0 0 0 ne1_ne2
3_nb1_nb11_nb14_nb2_nb3 3 3 0 0 0 0 0 11 11 0 0 0 0 0 0 0 0 0 0 0 0 ne3
3_nb4_sb3 11 0 0 0 0 ne4 4_nb5-6_sb4 4 11_4 11_6 0 0 ne5-6
nb7-8-10_sb5-6 5_8 11 0 0 10_11_6 0 10_6 ne7-8-10 7_sb7-8-10_sb9 3_8 11_9_se9 nb9 0 10 11 0 0 10 ne11_ne9_se3_se4_se5-6_se7-8-10
sb11 0 11 11 0 0 0 0 0 0 0 0 ne14_se11
nb12_nb13_sb14 ne12 12_sb12 12 12 0 0 0 0 ne13_se12 nb13 0 0 0 0 0 0 0 0 0 0 0 0 0 ne1_ne13_ne2_se14
