<http://webisa.webdatacommons.org/prov/516204501>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/244618767> .
<http://webisa.webdatacommons.org/244618767>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/244618767>	<http://www.w3.org/ns/prov#value>	", N is a natural number set, S" .
<http://webisa.webdatacommons.org/244618767>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<boundaryvalueproblems.com> .