About: http://webisa.webdatacommons.org/38541667

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	The precursors to it is production come from organic nitrates and nitrites in leafy green plants such as kale, spinach, swiss chard, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	nitrosolution.com