var str : List(String) := List{"A","B","C"};
var st : List(String) := List{"A","B","D"};
var temp : Sequence(String) := Sequence{};

		str -> forEach(i){
		   temp = st -> iterate(it : String;
				acc : Sequence(String) = Sequence{"Z"} | 
				if(i.equalsIgnoreCase(it))then {
					acc += it; //acc gives nothing back
					acc  -> including(it); // its empty
					//temp += it; //only direkt access works
				}endif	);				
                };