<http://webisa.webdatacommons.org/228439885>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/276611044>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/228439885> .
<http://webisa.webdatacommons.org/228439885>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<rightspeak.net> .
<http://webisa.webdatacommons.org/228439885>	<http://www.w3.org/ns/prov#value>	"Other factors, such as refusal to be interviewed and weighting, may introduce additional error that is more difficult to quantify.Click the icon below for cross-tabs:" .