Comparison between observed (blue squares and lines) SED (upper panel) and the normalized IUE and X-shooter spectra (lower panel) and the synthetic composite spectrum (red dotted line). The composite spectrum is the sum of the primary (black solid line) and secondary (green dashed line). The observed and modeled spectra in the UV are binned at 1 Å for clarity. Lines that are strongly affected by WWC are marked with red idents.