From @orbeckst in #4562

Btw, I couldn't access the GLYCAM nomenclature link but I found it in the internet archive (http://web.archive.org/web/20230330152511/https://glycam.org/docs/forcefield/glycam-naming-2/index.html). It would be an interesting project to collect all GLYCAM residue names so that we can create a selector "sugar" (or "carbohydrate") that selects anything with those residue names (similar to how "protein" selects anything that has the 20+ amino acid residue names).