, [ { Binding Binding Binding ( tp1 : ? t taxrefprop : bioGeo StatusIn ? bgs-> TM_SBG_SPM ) From From From : db

, Project Project Project : $. codeTaxon AS AS AS ?t , $. codeTaxon AS AS AS ? bgs Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon ) } ] INNER INNER INNER JOIN JOIN JOIN [ [ { Binding Binding Binding ( tp2 : ? bgs dct : spatial

, Project Project Project : $. codeTaxon AS AS AS ? bgs Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon ) } ] INNER INNER INNER JOIN JOIN JOIN [ { Binding Binding Binding ( tp3 : ? bgs dwc : o c c u r r e n c e S t a t u s taxrefbgs : P-> TM_S BG_SPM_B N1 ) From From From : db. taxrefv9

, Project Project Project : $. codeTaxon AS AS AS ? bgs )

, Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon ) , equals equals equals ($. spm , P ) } ] ON ON ON ? bgs ] ON ON ON ? bgs { Binding Binding Binding ( tp1 : ? t taxrefprop : bioGeo StatusI n ? bgs-> TM_SBG_SPM ) , Binding Binding Binding ( tp2 : ? bgs dct : spatial

, Binding Binding Binding ( tp3 : ? bgs dwc : o c c u r r e n c e S t a t u s taxrefbgs : P-> TM_SBG_S PM_BN1 ) From From From : db. taxrefv9

, equals equals equals ($. spm , P ) } Listing 1.8. Top: rewriting of the graph pattern of query Q7 after bindings reduction. Bottom: the same query after self-join elimination. Compared to the notation used in previous sections, each atomic abstract query contains heading lines providing the binding(s) of the triple pattern(s) that this atomic query accounts for, Project Project Project : $. codeTaxon AS AS AS ?t , $. codeTaxon AS AS AS ? bgs Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon )

, Project Project Project : $. codeTaxon AS AS AS ? t Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon ) , equals equals equals ($. codeTaxon , 60585) } ] INNER INNER INNER JOIN JOIN JOIN [ [{ Binding Binding Binding (? t skosxl : altLabel ? a-> T M

, Project Project Project : $. codeReference AS AS AS ?t , $. codeTaxon AS AS AS ? a Where Where Where : isNotNull isNotNull isNotNull ($. codeTaxon ) , equals equals equals ($. codeReference , 60585) } ] INNER INNER INNER JOIN JOIN JOIN [ { Binding Binding Binding (? t skosxl : altLabel ? b-> T M _ T a x o n _ A l t L a b e l ) From From From : db. taxrefv9

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