Types of Strings in F# Triple Quoted , Verbatim , Normal

// AbundantCode F# Tutorials and Code snippets
open System
[<EntryPoint>]
let main argv =
    // Normal String example 
    let string1 ="Windows Phone Tutorials with Abundantcode.com"
    // Verbatim string example
    let string2 = "Windows Store App tutorials with Abundantcode.com"
    // Triple Quoted String
    let string3 = """"Successful" Programming Website"""
    Console.WriteLine(string1)
    Console.WriteLine(string2)
    Console.WriteLine(string3)
    let retval = Console.ReadLine()
    0 // return an integer exit code