Degeneracies between pairs of properties highlighted by the inferred posteriors on the test set. For each simulation, these plots show the slope of the major axis of the 2D Gaussian that best fits the inferred posterior as a function of the Pearson correlation coefficients. Higher correlation coefficients correspond to sharper distributions towards the major axis of the Gaussian ellipses, as shown by the exemplificative examples plotted. As indicated by the plot titles, the inferred slopes suggest possible degeneracies between pairs of properties in forming the observed substructures. The red lines indicate the weighted average slope, calculated using the Pearson coefficients as weights.