Fractional difference between the modeled flux, f_m, and the synthetic flux, f_s, for NELs. Colors indicate the SN_MEDIAN_AL of the synthetic spectrum, and marks indicate the S/N in the region of the emission line labeled on the y-axis. In the x-axis of the bottom panel the names of the synthetic models are presented: w00, w02, w05, and w10 are the reference for the percentage of [OIII]winds which are 0%, 20%, 50%, 100% of the [OIII] NELs. The “2bels” label is a reference to synthetic models with two BEls components.