Comparison between the MZRs constructed in this work and the literature. Left panel: comparison between the fMZR, Cresci et al. (2012) MZR, and the Maiolino parameterization, both at redshift z ∼ 0.25. Middle panel: comparison between the bMZR, Savaglio et al. (2005), Lamareille et al. (2009), and the Maiolino parameterization at z ∼ 0.7. Right panel: comparison between the cMZR, Vaughan et al. (2020), and the Maiolino parameterization at z ∼ 0.3. Data points with open diamonds show the galaxies classified as composite in the BPT diagram of Fig. 8.