Comparisons of the abundances of CH₃OH and CH₃CN and SO₂ and SO for the hot cores in the SMC (open green circles), LMC (red rectangles), and MW (black triangles for inner Galactic hot cores and gray triangle for outer Galactic hot core). Dashed lines show abundance relations of 1:1 for the top-right panel and 1:100 for the other panels. The dotted lines show a variation of a factor of ten above and below the relations described by the dashed lines.