public static <E> List<E> intersection(final List<E> list1, final List<E> list2) {
        final List<E> result = new ArrayList<>();
        for (final E item : list1) {
            if (list2.contains(item)) {
                result.add(item);
            }
        }
        return result;
    }

    @SuppressWarnings("unchecked")
    public static <E> List<E> intersection(final List<E> list, final List<E> ... lists) {
        final Stack<List<E>> stack = new Stack<List<E>>();
        stack.push(list);
        for (int index = 0; index < lists.length; index += 1) {
          stack.push(intersection(stack.peek(), lists[index]));
        }
        return stack.peek();
    }