About: http://webisa.webdatacommons.org/312200954

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	tweets counts before and after the event for any of these keywords is a good indication that the secondary effect occurred.
http://www.w3.org/ns/prov#wasQuotedFrom	gdacs.org