<rdf:Description about="Jenny">
<age rdf:datatype="&xsd;int">10</age>
</rdf:Description>
<rdf:Description about="Movie">
<title rdf:datatype="&xsd;string">10</age>
</rdf:Description>
Give explicit data types when you want them
Pro: gives us datatypes
Con: verbose, tedious, prone to user error
accepted
