c1ncc2[nH]nnc2n1    mol4970    0_1
c1ncc2[nH][nH+]nc2n1    mol4970    1_1
c1ncc2[nH]n[nH+]c2n1    mol4970    1_2
c1nc2nn[nH]c2c[nH+]1    mol4970    1_3
c1ncc2[nH]nnc2[nH+]1    mol4970    1_4
c1ncc2[n-]nnc2n1    mol4970    -1_1