protected PunctuationContainer(PunctuationContainer clone)
 {
     _sentencesSeparators = clone._sentencesSeparators.ToList();
     _syntacticConstructionsSeparators = clone._syntacticConstructionsSeparators.ToList();
 }
 static PunctuationContainer()
 {
     var sentencesSeparators = new List<string> { ".", ";", "!", "?", "!?", "?!", "..."};
     var syntacticConstructionsSeparators = new List<string> { ",", "(", ")", "\"", "\'", ":" };
     Default = new PunctuationContainer(sentencesSeparators, syntacticConstructionsSeparators);
 }