<http://webisa.webdatacommons.org/prov/178368441>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/169682639> .
<http://webisa.webdatacommons.org/169682639>	<http://www.w3.org/ns/prov#value>	"Secondary walls develop in some cell types after the termination of cell expansion, and these walls usually contain lignin in addition to polysaccharides." .
<http://webisa.webdatacommons.org/169682639>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/169682639>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nih.gov> .