Orange and red histograms correspond to all QSO2s in the QSOFEED sample and to the five QSO2s studied here. From left to right and from top to bottom: luminosity distance, AGN luminosity, optical morphology (L=lenticular, E=elliptical, S=spiral, M=merger, I=interacting), integrated radio luminosity from FIRST 1.4 GHz data, W₈₀, and vel₀₅ of the [O III] line profile measured from SDSS optical spectra of the targets (Bessiere et al., in prep.). SDSS J134733.36+121724.3 was excluded from the W₈₀ and vel₀₅ histograms because of its extreme kinematics (W₈₀ = 2500 km s⁻¹ and vel₀₅ = −2500 km s⁻¹).