diff --git a/src/models/meta/MetaRDLTerm.java b/src/models/meta/MetaRDLTerm.java
index 61e17dd..fb751fd 100644
--- a/src/models/meta/MetaRDLTerm.java
+++ b/src/models/meta/MetaRDLTerm.java
@@ -72,72 +72,79 @@
 	}
 	
 	//dependency term
-	public MetaRDLTerm(Dependency dependency, MetaRDLTerm argumentTerm) {
-		super(
-			new Symbol(":", 3), 
-			dependency.getDependedVariable().getOrder() == argumentTerm.getOrder() 
-				? dependency.getDependedVariable().getOrder() 
-				: dependency.getDependedVariable().getOrder() - 1
-		);
-		if(! dependency.isDependeingTermEvaluatable()) {
+	public MetaRDLTerm(MetaRDLTerm dependingTerm, MetaResourceVariable dependedVariable, MetaRDLTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if (! EvaluatableTerm.class.isAssignableFrom(dependingTerm.getTermType().getBaseTermClass())) {
 			throw new IllegalTypeException();
 		}
-		addChild(dependency.getDependingTerm());
-		addChild(dependency.getDependedVariable());
+		if(! EvaluatableTerm.class.isAssignableFrom(argumentTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		addChild(dependingTerm);
+		addChild(dependedVariable);
 		addChild(argumentTerm);
-		this.termType = TermType.META_DEPENDENCY_TERM;
 	}
 	
-	public MetaRDLTerm(MetaRDLTerm dependency, EvaluatableTerm argumentTerm) {
-		super(
-			new Symbol(":", 3), 
-			((RDLTerm) dependency.getChild(1)).getOrder() == argumentTerm.getOrder() 
-				? ((RDLTerm) dependency.getChild(1)).getOrder()
-				: ((RDLTerm) dependency.getChild(1)).getOrder() - 1
-		);
-		var firstTerm = (RDLTerm) dependency.getChild(0);
-		if(firstTerm instanceof MetaRDLTerm) {
-			var firtTerm2 = (MetaRDLTerm) firstTerm;
-			if(firtTerm2.getTermType() == TermType.META_DEPENDENCY || firtTerm2.getTermType() == TermType.META_DEPENDENCY_TERM) {
-				throw new IllegalTypeException();
-			}
-		} else {
-			if(! (firstTerm instanceof EvaluatableTerm)) {
-				throw new IllegalTypeException();
-			}
+	public MetaRDLTerm(EvaluatableTerm dependingTerm, MetaRDLTerm dependedVariable, MetaRDLTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if(! EvaluatableTerm.class.isAssignableFrom(argumentTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
 		}
-		
-		addChild(dependency.getChild(0));
-		addChild(dependency.getChild(1));
+		addChild(dependingTerm);
+		addChild(dependedVariable);
 		addChild(argumentTerm);
-		this.termType = TermType.META_DEPENDENCY_TERM;
+	}
+	
+	public MetaRDLTerm(MetaRDLTerm dependingTerm, ResourceVariable dependedVariable, MetaRDLTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if (! EvaluatableTerm.class.isAssignableFrom(dependingTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		if(! EvaluatableTerm.class.isAssignableFrom(argumentTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		addChild(dependingTerm);
+		addChild(dependedVariable);
+		addChild(argumentTerm);
+	}
+	
+	public MetaRDLTerm(MetaRDLTerm dependingTerm, MetaRDLTerm dependedVariable, EvaluatableTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if (! EvaluatableTerm.class.isAssignableFrom(dependingTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		addChild(dependingTerm);
+		addChild(dependedVariable);
+		addChild(argumentTerm);
+	}
+	
+	public MetaRDLTerm(MetaRDLTerm dependingTerm, ResourceVariable dependedVariable, EvaluatableTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if (! EvaluatableTerm.class.isAssignableFrom(dependingTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		addChild(dependingTerm);
+		addChild(dependedVariable);
+		addChild(argumentTerm);
+	}
+	
+	public MetaRDLTerm(EvaluatableTerm dependingTerm, MetaResourceVariable dependedVariable, EvaluatableTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		addChild(dependingTerm);
+		addChild(dependedVariable);
+		addChild(argumentTerm);
+	}
+	
+	public MetaRDLTerm(EvaluatableTerm dependingTerm, ResourceVariable dependedVariable, MetaRDLTerm argumentTerm) {
+		super(new Symbol(":", 3), -1);
+		if(! EvaluatableTerm.class.isAssignableFrom(argumentTerm.getTermType().getBaseTermClass())) {
+			throw new IllegalTypeException();
+		}
+		addChild(dependingTerm);
+		addChild(dependedVariable);
+		addChild(argumentTerm);
 	}
 
-	public MetaRDLTerm(MetaRDLTerm dependency, MetaRDLTerm argumentTerm) {
-		super(
-				new Symbol(":", 3), 
-				((RDLTerm) dependency.getChild(1)).getOrder() == argumentTerm.getOrder() 
-					? ((RDLTerm) dependency.getChild(1)).getOrder()
-					: ((RDLTerm) dependency.getChild(1)).getOrder() - 1
-			);
-			var firstTerm = (RDLTerm) dependency.getChild(0);
-			if(firstTerm instanceof MetaRDLTerm) {
-				var firtTerm2 = (MetaRDLTerm) firstTerm;
-				if(firtTerm2.getTermType() == TermType.META_DEPENDENCY || firtTerm2.getTermType() == TermType.META_DEPENDENCY_TERM) {
-					throw new IllegalTypeException();
-				}
-			} else {
-				if(! (firstTerm instanceof EvaluatableTerm)) {
-					throw new IllegalTypeException();
-				}
-			}
-			
-			addChild(dependency.getChild(0));
-			addChild(dependency.getChild(1));
-			addChild(argumentTerm);
-			this.termType = TermType.META_DEPENDENCY_TERM;
-	}
-	
 	
 	public boolean isVariable() {
 		return false;
diff --git a/src/tests/meta/MetaResourceVariableTest.java b/src/tests/meta/MetaResourceVariableTest.java
index 56036ae..6eef567 100644
--- a/src/tests/meta/MetaResourceVariableTest.java
+++ b/src/tests/meta/MetaResourceVariableTest.java
@@ -23,7 +23,7 @@
 		ResourceVariable b = new ResourceVariable("b", INT, 0);
 		ResourceVariable c = new ResourceVariable("c", INT, 0);
 		Dependency dep = new Dependency(a, b);
-		DependencyTerm depTerm = new DependencyTerm(dep, c);
+		DependencyTerm depTerm = new DependencyTerm(a, b, c);
 		
 		MetaResourceVariable x = new MetaResourceVariable(new Variable("x"));
 		MetaDependencyVariable d = new MetaDependencyVariable(new Variable("d"));