<http://webisa.webdatacommons.org/133697084> <http://www.w3.org/ns/prov#wasQuotedFrom> <roznovaksservices.com> . <http://webisa.webdatacommons.org/133697084> <http://www.w3.org/ns/prov#value> "However, they are not impervious to the types of problems which may plague any mechanical system." . <http://webisa.webdatacommons.org/133697084> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/437469173> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/133697084> .