About: http://webisa.webdatacommons.org/154218709

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	Iron is particularly attractive because of its very high earth-abundance, as well as its low cost and toxicity, leading Bolm to suggest the advent of a ???new iron age???.
http://www.w3.org/ns/prov#wasQuotedFrom	greencarcongress.com