import UIKit

class Person {
    // Class Property
    var name = ""
}

class BlogPost {
    var title:String?
    var body = "hey"
    var author:Person?
    var numberOfComments = 0
}

let post = BlogPost()

post.title = "Hello"

// Optional Binding
if let actualTitle = post.title {
    print(actualTitle + " is a saulute")
    print(post.title, post.body, post.author, post.numberOfComments)
}