Optimal template for NIFS (top) and GMOS (bottom) observations. The black line represents the total galaxy spectrum, which is composed of the spectra of all single spatial pixels, the red line shows the optimal template, which is fitted to the total galaxy spectrum. The fitting residuals are presented as green dots spread around the residual = 0-line (green solid line), where both are shifted upwards by an arbitrary amount. The shaded regions contain emission lines and are not included in the fit.