return {

    name      = "basic pdf specific tagging : formula",
    version   = "1.00",
    author    = "Hans Hagen & Mikael Sundqvist",
    copyright = "ConTeXt development team",

    mapping   = {

        formulaset     = { pdf = "Div"       },
        formula        = { pdf = "Div"       },
        formulacaption = { pdf = "Artifact"  }, -- Lbl
        formulalabel   = { pdf = "NonStruct" },
        formulanumber  = { pdf = "Lbl"       }, -- Span
        formulacontent = { pdf = "Formula"   },
     -- subformula     = { pdf = "NonStruct" },

        math           = { pdf = "Formula"   },

    },

}