Position of a few face-on barred lenticular galaxies with outer star-forming rings at the scaling relations derived from extended GALEX Arecibo SDSS survey (xGASS) data (Catinella et al. 2018; Janowiecki et al. 2020). The data for the galaxies are taken from Parkash et al. (2018). The large orange dots in the left panel and the black line in the right panel mark the medians and the main sequence of star-forming galaxies, respectively; dotted lines indicate the ±0.3 dex interval around the main sequence.