About: http://webisa.webdatacommons.org/149070134

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	Effective against crop pests as well as insects that transmitted human diseases such as typhus and malaria, DDT had at first appeared safe.
http://www.w3.org/ns/prov#wasQuotedFrom	tatteredcover.com