SFR-stellar mass relation. Blue points represent stellar masses from Perley et al. (2016) and SFR from Krühler et al. (2015) where we highlighted the GRBHs in our sample using a star symbol and the corresponding name. The colour map encodes the redshift. The black circles with blue interiors correspond to the GRBHs of our sample with SFR and stellar masses derived from the SED fitting. The grey lines represent the main sequence relation from Schreiber et al. (2015), the dashed line is four times the main sequence at z  =  1.5 representative of starbursting galaxies (most of our our GRBHs are at z  ∼  1.5).