Fig. 4From: SPANG: a SPARQL client supporting generation and reuse of queries for distributed RDF databasesStepwise execution of SPANG commands for integrative use of RDF databases. The first SPANG command retrieves differentially expressed genes in samples of “Alzheimer’s disease” (EFO_0000249). The second command filters resulting proteins by GO annotation of “synapse” (GO_0045202)Back to article page