conformance with Rdf schema

Hello,

I nedd Know how to verify the conformance of my RDF model with a RDF schema
(e.g. In my schema there is a property called Sexo, wich can receive two
values: Masculino and Feminino. How can I to control my instance of RDF
model for that accept only this values? )

Thanks,

Edilene Aparecida Veneruchi.