Kernel density distribution of the [C+N+O/Fe] values of NGC 0362, NGC 1851, ωCen, and NGC 6656. The distribution of canonical and anomalous stars is shown in black and red, respectively. Median spectroscopic errors are represented in gray. For NGC 0362, which has only one anomalous star, its position is highlighted with a vertical red line. The narrow distribution of canonical stars in NGC 5139 (Marino et al. 2012 dataset) is due to having only two stars with ChM tagging.