I am trying to create a dictionary app using CoreData. The data model I'm trying to recreate with CD is like this (for demonstration purposes):

struct Word: Codable {
    let id, word, transliteration: String
    let wordClasses: [WordClass]
    let userNotes: [UserNote]
    let userTag: String
}

struct UserNote: Codable {
    let userNote: String
}

struct WordClass: Codable {
    let wordClass: String
    let translations: Translations
    let examples: [Example]
}

struct Example: Codable {
    let example: String
}

struct Translations: Codable {
    let en, tr, ru: String
}

Here's the relationship model I've created.

When I create NSManagedObjectSubclass from these entities, for instance, WordClass and/or UserNote variables are created as objects, not object arrays, like below. Also every child object has the parent as a variable. Is that right?

I am still new to CoreData, and before I dive into this, I'd appreciate any feedback.

extension Word {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<Word> {
        return NSFetchRequest<Word>(entityName: "Word")
    }

    @NSManaged public var id: UUID?
    @NSManaged public var word: String?
    @NSManaged public var transliteration: String?
    @NSManaged public var tag: String?
    @NSManaged public var userNotes: UserNote?
    @NSManaged public var wordClasses: WordClass?
}

extension WordClass {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<WordClass> {
        return NSFetchRequest<WordClass>(entityName: "WordClass")
    }

    @NSManaged public var wordClass: String?
    @NSManaged public var word: Word?
    @NSManaged public var translations: Translation?
    @NSManaged public var examples: Examples?
}

extension Translation {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<Translation> {
        return NSFetchRequest<Translation>(entityName: "Translation")
    }

    @NSManaged public var en: String?
    @NSManaged public var tr: String?
    @NSManaged public var ru: String?
    @NSManaged public var wordClass: WordClass?

}

extension Examples {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<Examples> {
        return NSFetchRequest<Examples>(entityName: "Examples")
    }

    @NSManaged public var example: String?
    @NSManaged public var wordClass: WordClass?

}

extension UserNote {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<UserNote> {
        return NSFetchRequest<UserNote>(entityName: "UserNote")
    }

    @NSManaged public var userNote: String?
    @NSManaged public var word: Word?

}

Thank you!