About: http://webisa.webdatacommons.org/165862270

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	Scientists know that enzymes are at the heart of the process and that all of them contain iron and other metals, but they have not been able to settle on which is responsible for the actual conversion process.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org