About: http://webisa.webdatacommons.org/227397114

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	volunteers can still generate costs to services, e.g. for training and supervision,
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com