56 UMa compared to the CEMP stars from Karinkuzhi et al. (2021a). Left: [La/Fe]–[Eu/Fe] plane, where the dashed green line corresponds to a pure solar r-process, and the continuous blue line to s-process predictions. Right: histograms of the abundance distance d (Appendix E) of 56 UMa and the reference stars. The vertical dashed line at d = 0.6 marks the threshold adopted between CEMP-s and CEMP-rs stars.