Spectral comparison of OGLE-2014-SN-131 with a sample of SN spectra obtained a few weeks after maximum. The sample includes the Type Ib SN iPTF13bvn (Fremling et al. 2014); the Type Ibn SNe 2010al (Pastorello et al. 2015a) and 2006jc (Pastorello et al. 2008); the Type Ibn/IIn SNe 2011hw and 2005la (Pastorello et al. 2015a); and the Type IIn SN 2006jd (Stritzinger et al. 2012). The locations of the prominent He i lines and that of Hα have been marked with red dashed, and a blue dot-dashed line, respectively. This figure is adapted from Pastorello et al. (2015a, their Fig. 11). Phases in parenthesis are rest-frame days since maximum. The main telluric features of our spectrum are marked with crossed-circles.