<http://webisa.webdatacommons.org/215355566>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ncaonline.org> .
<http://webisa.webdatacommons.org/215355566>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/290128820>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/215355566> .
<http://webisa.webdatacommons.org/215355566>	<http://www.w3.org/ns/prov#value>	"This national trails study is designed to analyze parameters such as installation procedures, labor requirements, ongoing maintenance needs, costs, and aggregate combination requirements in the use of various soil stabilization products to provide firm and stable trail surfaces." .