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The Symbol Nomenclature For Glycans is a community-curated standard for the depiction of simple monosaccharides and complex carbohydrates using various colored-coded, geometric shapes, along with defined text additions. It is hosted by the National Center for Biotechnology Information at the NCBI-Glycans Page. It is curated by an international groups of researchers in the field that are collectively called the SNFG Discussion Group. The overall goal of the SNFG is to: