About: http://webisa.webdatacommons.org/150539745

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If you???re building your raised bed on an impervious surface, such as asphalt or cement, you need to build the bed a little taller (2 to 4 inches) and place landscape fabric under it.
http://www.w3.org/ns/prov#wasQuotedFrom	dummies.com