@prefix foaf:  <http://xmlns.com/foaf/0.1/> .
@prefix :      <http://example.org/> .

:john a foaf:Person .
:john foaf:givenName "John" .
:john foaf:mbox  <mailto:johnny@example.org> .

:sue a foaf:Person .
:sue foaf:givenName "Susan" .
:sue foaf:mbox  <mailto:sue@example.org> .