About: http://webisa.webdatacommons.org/194338891

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	Box 40 Public Opinion Correspondence, Health; consists principally of letters relating to health insurance, preventive medicine, and public health programs, arranged alphabetically by name of correspondent, A-Z (9 folders)
http://www.w3.org/ns/prov#wasQuotedFrom	socialsecurity.gov