concrete GrammarUkr of Grammar =
  TenseX,
  PhraseUkr,
  NounUkr,
  VerbUkr,
  AdjectiveUkr,
  AdverbUkr,
  NumeralUkr,
  SentenceUkr,
  QuestionUkr,
  RelativeUkr,
  ConjunctionUkr,
  IdiomUkr,
  StructuralUkr,
  NamesUkr ** {
}