<http://webisa.webdatacommons.org/prov/266433001>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261540042> .
<http://webisa.webdatacommons.org/261540042>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/261540042>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<worldwidescience.org> .
<http://webisa.webdatacommons.org/261540042>	<http://www.w3.org/ns/prov#value>	"A control was a person residing in the same community who did not have history of signs and symptoms of measles during the same period." .