Answering Systems The World of LD In Linked Data (LD), all relations are expressed as RDF graphs Recently, the number of RDF Knowledge Bases (RKBs) is rapidly increasing Example res:Japan res:Tokyo onto:capital Linking Open Data cloud diagram 2017, by Andrejs Abele, John P. McCrae, Paul Buitelaar, Anja Jentzsch and Richard Cyganiak. http://lod-cloud.net/ 2 / 16