About: http://webisa.webdatacommons.org/283791204

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	What does make them ???low impact??? and classified by the EU as eco-friendly: they have been formulated to contain no heavy metals or other known toxic substances, and do not need mordants.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com