@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix eg: <http://biometrics.example/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
_:a foaf:name "alice".
_:a eg:shoeSize "9.5"^^xsd:float .
_:b foaf:name "bob".
_:b eg:shoeSize "42"^^xsd:integer .