public override string ToSimpleString()
{
string s = "";
s += "URI: " + this.URI + "\n";
s += "label: " + this.label + "\n";
s += "QuestionMatch : " + this.QuestionMatch + "\n";
s += "identifier : " + this.identifier + "\n";
s += "typeOfOwner : " + string.Join("\n", this.typeOfOwner.ToArray());
s += "predicate : " + this.predicate + "\n";
s += "score :" + this.score + "\n";
s += "-------------------------------------\n";
return s;
}