Sum of the best-fitting LOC model (dotted lines) and the predictions from wind-like BLR models of Matthews et al. (2020) (shaded areas). The wind volume-filling factor of the displayed models is 0.01 (left panel) and 0.1 (right panel). The width of the composite model prediction for each line represents the range of luminosity expected by the wind model assuming different minimal and maximal opening angles of the wind, ranging from nearly axial to nearly equatorial. Following the wind model predictions, we merged the measured luminosities of Lyα with those of N V, and the measured luminosities of Hβ with those of He II, in addition to other blends (same as in Fig. 4, marked with a dagger).