Star formation rate (SFR) versus stellar mass from our sample compared to the star formation of field galaxies at z = 5 − 7. Our sample is colour-coded by the rest-frame C III] EW. The general parent population in the same redshift range appears as grey circles. The blue line represents the relationship found by Calabrò et al. (2024), derived with SFR based on Hα for a similar spectroscopic sample.