About: http://webisa.webdatacommons.org/450091383

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	Eighty-four percent knew of students who carried knives or blades from such items as a scalpel or a utility knife to school, and 89% were worried about violence at school.
http://www.w3.org/ns/prov#wasQuotedFrom	scielosp.org