private OWLClassExpression parse(@Nonnull String text) {
MockEntityChecker checker = new MockEntityChecker(df);
ManchesterOWLSyntaxParser parser = OWLManager.createManchesterParser();
parser.setStringToParse(text);
parser.setOWLEntityChecker(checker);
return parser.parseClassExpression();
}
/**
* A very simple entity checker that only understands that "p" is a property
* and rdfs:Literal is a datatype. He is an extreme simplification of the