Left: profiles of the [O i] λλ6300, 6364 lines plotted vs. Doppler velocity measured from 6300 Å. The spectra are the same as Figure 4, but SN 2003jd (broad Ic, 330 days; Mazzali et al. 2005; Valenti et al. 2008b) is added. SNe 1998bw, 2004gq, and 2002ap show single-peaked profile while SNe 2008D and 2005kl, and 2003jd show double-peaked profile. The gray lines for SN 2008D show the profiles corrected for the possible narrow [O i] contamination (Figure 5). The spectra are shifted by 17.5, 14.0, 10.5, 7.0, 3.5, and 0.0 from top to bottom. Narrow lines from the host galaxies are removed. Right: profiles calculated with model BP8 by Maeda et al. (2006, 2008). The number represents the viewing angle measured from the polar direction. The spectra are shifted by 16, 12, 8, 4, and 0 from top to bottom.