Kumanovski dijalekt

public class KumanovskiDijalekt {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        int n=Integer.parseInt(in.nextLine());

        CBHT<String, String> tabela=new CBHT<>(n*2+1);
        for(int i=0;i<n;i++){
            String line=in.nextLine();
            String [] parts=line.split(" ");

            tabela.insert(parts[0],parts[1]);
        }

        String text=in.nextLine();
        String [] parts=text.split(" ");
        StringBuilder sb=new StringBuilder();
        for(int i=0;i<parts.length;i++){
            String word="";
            boolean found=false;
            char sign;
            sign = ' ';
            if(parts[i].charAt(parts[i].length()-1)=='.' || parts[i].charAt(parts[i].length()-1)==','){
                word=parts[i].substring(0,parts[i].length()-1);
                found=true;
                sign=parts[i].charAt(parts[i].length()-1);
            }else{
                word=parts[i];
            }
            word=word.toLowerCase();
            SLLNode<MapEntry<String,String>> temp=tabela.search(word);
            if(temp==null){
                sb.append(parts[i]+" ");
                continue;
            }
            String prevod=temp.element.value;

            if(found){
                prevod=prevod+sign;
            }
            if(Character.isUpperCase(parts[i].charAt(0)))
                prevod=prevod.substring(0,1).toUpperCase()+prevod.substring(1).toLowerCase();
            sb.append(prevod+" ");
        }
        System.out.println(sb.toString());
    }
}