<http://webisa.webdatacommons.org/13619414>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cornell.edu> .
<http://webisa.webdatacommons.org/prov/13755150>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/13619414> .
<http://webisa.webdatacommons.org/13619414>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/13619414>	<http://www.w3.org/ns/prov#value>	"Chemical wood pulp, introduced around 1850, was obtained by dissolving lignin with chemicals to leave fibers consisting mainly of cellulose." .