We detected broad Hβ line emission in two of our galaxies, MRC1558-003 and MRC2025-218 (upper panels). Thick black lines show a Gaussian line profile with the same redshift and line width, which we measured for Hα, scaled to match the Hβ flux. Thick gray lines show the FeII template from Iwamuro et al. (2002), to illustrate that the contribution of FeII is negligible in both cases. We subtracted the continuum in both spectra. The middle and lower panels show the fit residual spectrum after subtracting Hβ and the position of night sky lines, respectively.