It is possible to define resource in one place and add properities in another like this:
<rdf:Description rdf:about="http://www.example.sk/Maria_Juana">
<rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Person"/>
</rdf:Description>
<rdf:Description rdf:about="http://www.example.sk/Maria_Juana">
<rdf:name>Maria Juana</rdf:name>
</rdf:Description>