<http://webisa.webdatacommons.org/211204425>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/211204425>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ssa.gov> .
<http://webisa.webdatacommons.org/prov/342630184>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/211204425> .
<http://webisa.webdatacommons.org/prov/482705361>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/211204425> .
<http://webisa.webdatacommons.org/211204425>	<http://www.w3.org/ns/prov#value>	"This variable measures whether respondents received any pension or retirement income other than Social Security." .