About: http://webisa.webdatacommons.org/111658255

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	As explained under question 1B, serpentine and basalt are the hardest stones, and not only do they take the artist longer to make a carving but also require more skill to work with.
http://www.w3.org/ns/prov#wasQuotedFrom	eskimoart.com