About: http://webisa.webdatacommons.org/291958396

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	S1 = How much difficulty did you have in standing for long periods such as 30 minutes?
http://www.w3.org/ns/prov#wasQuotedFrom	va.gov