<http://webisa.webdatacommons.org/prov/9506185>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/164278851> .
<http://webisa.webdatacommons.org/164278851>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/164278851>	<http://www.w3.org/ns/prov#value>	"from non-horizontal surface is a problem, especially if the pipe being" .
<http://webisa.webdatacommons.org/164278851>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .