About: http://webisa.webdatacommons.org/210610364

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	For best results the amount of over- and under-pressure, the duration of the periods, and other factors must be carefully controlled.
http://www.w3.org/ns/prov#wasQuotedFrom	fao.org