class Player: NSObject {
    @objc var attributes: [String]
    @objc var name: String

    init(name: String, attributes: [String]? = nil) {
        self.attributes = attributes ?? name.components(separatedBy: "")
        self.name = name
    }

    override var description: String {
        return "(P: \(name) - [\(attributes.joined(separator: ","))])"
    }
}

let players = [Player(name: "ABC"), Player(name: "BCD"), Player(name: "CDE"), Player(name: "DEF")]
print(players)

// Sample init test
let filtered1 = players.filter {
    NSPredicate(format: "name CONTAINS %@", "B").evaluate(with: $0)
}
//(to check that predicate is working, not key value non compliant issue.
print("filtered1: \(filtered1)")

// ANY
let filtered2 = players.filter {
    NSPredicate(format: "ANY attributes CONTAINS %@", "B").evaluate(with: $0)
}
print("filtered2: \(filtered2)")

let filtered3 = players.filter {
    NSPredicate(format: "NOT (ANY attributes CONTAINS %@)", "B").evaluate(with: $0)
}
print("filtered3: \(filtered3)")


// Without ANY
let filtered2AndHalf = players.filter {
    NSPredicate(format: " attributes CONTAINS %@", "B").evaluate(with: $0)
}
print("filtered2AndHalf: \(filtered2AndHalf)") //Empty because non will be equal
let filtered3AndHalf = players.filter {
    NSPredicate(format: "NOT (attributes CONTAINS %@)", "B").evaluate(with: $0)
}
print("filtered3AndHalf: \(filtered3AndHalf)")  //Will return everying as expected, since it's the reverse of which returns nothing, it returns then all.