<http://webisa.webdatacommons.org/246506102> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/266379526> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/246506102> . <http://webisa.webdatacommons.org/246506102> <http://www.w3.org/ns/prov#value> "These methods are particularly useful to programs" . <http://webisa.webdatacommons.org/246506102> <http://www.w3.org/ns/prov#wasQuotedFrom> <linuxtopia.org> .