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SPARQL queries can be represented in RDF in order to work with them as first-class citizen in Semantic Web applications. The representation used so far, SPIN SPARQL, closely follows the abstract syntax tree, but fails to directly capture the semantics and is hard to work with for query rewriting. Here a novel vocabulary based on SPARQL Algebra is presented. The adequacy of the language is empirically shown through a few examples.dblp:conf/amw/CerianiV16 fatcat:laqfbkr6qvd2dkbzb3ixspyfue