About: http://webisa.webdatacommons.org/284962154

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	Still, Ehrlich's warnings inspired development of the the pill and other modern contraceptives, which cut birthrates in industrialized countries.
http://www.w3.org/ns/prov#wasQuotedFrom	overpopulation.org