Manipulate OriginalReversed So That It Contains Value Of Original In Reverse

So In my program I have a String called original and I am supposed to prompt the user for a sentence and then Make a StringBuilder instance called “originalReversed” based off of original. Then I have to do is to "Manipulate originalReversed so that it contains the value of original in reverse. This is done with a single statement."

import java.util.Scanner;
public class StringBuilderPractice {
public static void main(String [] args)
{
Scanner input = new Scanner(System.in);
String original;

System.out.println("Please enter a sentence: ");
original = input.nextLine();
}

how to create the instance but not the second part where it says manipulate the value for the first part I think it might be

StringBuilder originalReversed = new StringBuilder(original);