How to take the values from one class in SPARQL?

Question

From my Consept class I want to print the values it has. For example:
The Consept has: M0000111 M1232132 M0091911 M12321321 M12321213 M00032422

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

SELECT ?values
 WHERE {
  ?values rdf:type owl:Consept.
}

My attempt code shows nothing. I don't know, where is the problem in this sparql query? Also I want to work in protege 5.5 and not in mesh rdf web.