sentence: the packages that form redland are : redland rdf application framework providing the c rdf api raptor rdf parser toolkit for parsing and serializing rdf syntaxes ( rdf/xml , n-triples , turtle , rss tag soup , atom ) rasqal rdf query library for executing rdf queries with rdql and sparql redland language bindings for apis to redland in c# , java , objective-c , perl , php , python , ruby and tcl redland is a mature set of libraries , in development since 2000 and closely conformant to the relevant w3c specifications .