<http://webisa.webdatacommons.org/147843764>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/147843764>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/516248590>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/147843764> .
<http://webisa.webdatacommons.org/147843764>	<http://www.w3.org/ns/prov#value>	"When p is a child port, k is a descendant of elf and self can calculate the tree path distance between them and inform k." .