concrete SentencesPes of Sentences =  NumeralUrd **  SentencesI - [sing,NNumeral,ObjPlural,MCan,MKnow,MMust,V2Wait,VWait] with 
  (Syntax = SyntaxPes),
  (Symbolic = SymbolicPes),
  (Lexicon = LexiconPes) **
  {
  lin ObjPlural k = mkNP k ;
  };;