Example of decomposition of objects from the blended subsample (group a): SDSS J010946.70+134411.9 (a1, b1, c1) and SDSS J111848.44+280738.3 (a2, b2, c2). The blended Hα+[N II] is decomposed as: nested Hα BLR and three weak wing components in panel a1 and with three strong wing components in panel a2. The decomposition of the [O III] and Hβ is shown in panel b1 and b2, and decomposition of the [S II] lines is shown in panels c1 and c2. The core and wing components are denoted with the dotted and solid line, respectively.