Top: [NII]-BPT diagrams for the outflow component (i.e., tertiary component for all the lines involved). Shock+precursor grid models from Allen et al. (2008) are shown assuming Z = Z_⊙ and different values of the shock velocities (v = 200 − 1000 km s⁻¹) and magnetic field (B = 10⁻⁴–10 μG). The solid curve defines the theoretical upper bound for pure star formation from Kewley et al. (2001), while the dashed one in the [NII]-diagram is the Kauffmann et al. (2003) empirical classification. The dash-dotted line represents the demarcation line between Seyfert galaxies and shocks or LINERs from Schawinski et al. (2007). Bottom: 2D map derived applying the [NII]-BPT criteria for the outflowing component. The black cross identified the AGN position.