adding more fixes to woql

Author: kevinchekovfeeney

lib/woql.js

@@ -986,6 +986,13 @@ TripleBuilder.prototype.isa = function(s){
 	return this.addEntry(unit);
 }
 
+TripleBuilder.prototype.domain = function(d){
+	d = this.query.cleanClass(d);
+	var x = this.addPO('rdfs:domain',d);
+	return x;
+}
+
+
 TripleBuilder.prototype.sub = function(s){
 	s = this.query.cleanClass(s);
 	var unit = new WOQLQuery.sub(this.subject, s);
@@ -1010,7 +1017,7 @@ TripleBuilder.prototype.property = function(p,val){
 
 TripleBuilder.prototype.parent = function(...p){
 	for(var i = 0 ; i<p.length; i++){
-		pn = this.query.cleanClass(p[i]);
+		var pn = this.query.cleanClass(p[i]);
 		this.addPO('rdfs:subClassOf', pn);
 	}
 	return this;