Azimuthally averaged normalised brightness profiles of the C₂H (blue) and 1.2 mm continuum (pink) emission as functions of disc radius for Sz 71 (top panel) and Sz 114 (bottom panel). The blue vertical lines show the peak location of the C₂H emission, while the dotted and solid pink lines show respectively the location of the gaps and rings detected in these discs by Huang et al. (2018) with higher-angular-resolution ALMA data (DSHARP large program; Andrews et al. 2018).