Characterization of the three galaxies presented in this work in terms of stellar mass, SFRs, and AGN activity. Left: SFR–M_⋆ plane. The solid and dashed lines represent the main-sequence (MS) parametrization suggested by Whitaker et al. (2012) and the 4 × SFR(MS) starburst threshold, respectively. Middle: BPT-diagram (Baldwin et al. 1981). The dashed curve shows the empirical star-forming threshold (Kauffmann et al. 2003), whereas the solid curve corresponds to the theoretical maximum starburst model (Kewley et al. 2001). These two lines encompass the SFGs-AGN “composite” zone. The dotted-dashed line indicates the division between AGNs and LINERs (Schawinski et al. 2007). Right: WISE mid-IR colour-colour diagram. The solid lines delimit the AGN-zone suggested by Mateos et al. (2012), whereas the dashed line represents the AGN threshold adopted by Stern et al. (2012). The WISE data 1-σ errorbars are smaller than the plotted symbol sizes. The GAMA data are taken from their data-release 3 (GAMA-DR3; Baldry et al. 2018), encompassing galaxies at z < 0.35 (the upper redshift limit for the VALES survey) and with 5-σ or higher flux estimates. These three panels indicate that the three galaxies presented in this work can be classified as starbursts, with one target (HATLAS114625−014511) likely to be classified as an obscured AGN host galaxy.