Baldwin et al. (1981; BPT) diagrams. Left panel: [N II]/Hα vs. [O III]/Hβ BPT diagram showing the location of AGN1317 (yellow triangle). We adopted the classification of the galaxies in H II-region-like, composite AGN-H II types, and AGN according to Kewley et al. (2006). The Kewley et al. (2001) extreme starburst line and the Kauffmann et al. (2003) pure star formation line are shown as the solid and dashed lines, respectively. Right panel: same as the left panel for the [S II]/Hα vs. [O III]/Hβ BPT diagram. We adopted the classification of the galaxies in H II-region-like, Seyferts, and LINERs according to Kewley et al. (2006). The Kewley et al. (2001) extreme starburst line and the Kewley et al. (2006) Seyfert-LINER line are shown as the solid and dashed lines, respectively.