About: http://webisa.webdatacommons.org/21956558

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	Those with white cards who worked legally for at least 40 days were eligible to receive a green card, which constituted a work permit valid for one to three years, depending on length of stay in Greece, occupation, and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	refworld.org