[X/Fe] for CEMP stars of this work and from the literature. Symbols – starred circles: this work; filled squares: 0  < [Ba/Eu]  ≲  0.5 (CEMP-r/s); open squares: [Ba/Eu]  > 0.5 (CEMP-s); crosses: [Ba/Fe]  < 0 (CEMP-no); filled triangles: [Ba/Fe]  > +1 but there is no available Eu abundance (s or r/s?); open triangles: 0  < [Ba/Fe]  < +1 but there is no available Eu abundance (r?); filled circles: [Ba/Eu]  < 0 (r); dashes: upper limit for Ba and Eu; big open squares involving four crosses, two filled triangles and one dash indicate high over-abundance of Mg, [Mg/Fe]  > +1.4. The dotted lines indicate where [X/Fe] = 1. See text for an explanations concering stars with [C/Fe]  < +1.