<http://webisa.webdatacommons.org/328530174> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/365204985> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/328530174> . <http://webisa.webdatacommons.org/328530174> <http://www.w3.org/ns/prov#value> "For instance, their small size could allow them to unintentionally slip into the bloodstream and into the brain or other organs, said Richard Denison, senior scientist for environmentalist group Environmental Defense in Washington, D.C." . <http://webisa.webdatacommons.org/prov/415351713> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/328530174> . <http://webisa.webdatacommons.org/328530174> <http://www.w3.org/ns/prov#wasQuotedFrom> <phys.org> .