sbool englishToConceptLanguage_dropPunctuation;
sbool englishToConceptLanguage_hygienicParsing = true;

sS englishToConceptLanguage(S s) {
  if (englishToConceptLanguage_hygienicParsing) {
    Lisp l = hygienicParse1(s);
    if (l != null) ret clUnparse(l);
  }
  
  try answer englishToConceptLanguage_simple(s);
  try answer englishToConceptLanguage_xyz(s, null);
  if (englishToConceptLanguage_dropPunctuation)
    try answer englishToConceptLanguage_xyz(s, f dropPunctuation);
  ret s;
}