NLP Test for iOS 5.0+

let options = NSLinguisticTagger.Options.omitWhitespace.rawValue | NSLinguisticTagger.Options.joinNames.rawValue
        let tagger = NSLinguisticTagger(tagSchemes: NSLinguisticTagger.availableTagSchemes(forLanguage: "en"), options: Int(options))

        let inputString = "This is a very long test for you to try"
        tagger.string = inputString

        let range = NSRange(location: 0, length: inputString.utf16.count)
        tagger.enumerateTags(in: range, scheme: .nameTypeOrLexicalClass, options: NSLinguisticTagger.Options(rawValue: options)) { tag, tokenRange, sentenceRange, stop in
            guard let range = Range(tokenRange, in: inputString) else { return }
            let token = inputString[range]
            print("\(tag): \(token)")
        }