Modeling of the spectra of 4 objects without a readily visible BLR modeled with 3 different methods: by using the [O I] lines as templates and including a broad Hα component (left column), again with the [O I] template but adding a wing to the [N II] and narrow Hα lines (center column), by using as template the [S II] lines and including a BLR (right column). The original spectrum is in black, the contribution of the individual narrow lines in blue (their sum is in green), and in red are the residuals. The BLR component is in red.