<http://webisa.webdatacommons.org/prov/500020227>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/198235781> .
<http://webisa.webdatacommons.org/198235781>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<adweek.com> .
<http://webisa.webdatacommons.org/198235781>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/198235781>	<http://www.w3.org/ns/prov#value>	"??? Users can tweet their presence at an event or in a city to gauge whether or not friends or followers are present, and then have the tweet removed when they???re no longer there" .