About: http://webisa.webdatacommons.org/334822976

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	State and national teachers union officials were there as well, including Randi Weingarten, the president of the American Federation of Teachers, the parent union of the Chicago Teachers Union.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com