About: http://webisa.webdatacommons.org/357242086

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	Rockwool is a fibrous material that has good water retention and allows air to pass through, a slightly alkaline product that should be pre-soaked in an acidic solution to lower the PH level before use.
http://www.w3.org/ns/prov#wasQuotedFrom	greensea-hydroponics.co.uk