Update It.05_Coordinated_iteration_mixed.mp

models/Iteration Patterns/It.05_Coordinated_iteration_mixed.mp

@@ -11,6 +11,6 @@ ROOT B: {+ b +};
 COORDINATE $z: b FROM B
 	DO	
 		COORDINATE 	$x: a FROM A,
-				  	$y: c FROM $b
+				  	$y: c FROM $z
 			DO ADD $x PRECEDES $y;	OD;
     OD;
\ No newline at end of file