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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_used_entity(self, entity_uri):
 """ Add the provided URI as a used entity by the logged activity """

        entity_o = URIRef(entity_uri)
        self.prov_g.add((entity_o, RDF.type, self.prov.Entity))
        self.prov_g.add((self.activity, self.prov.used, entity_o))