Вывести слова (важно) - C++

#include <iostream>
#include <string>
#include <sstream>
 
int main(){
  std::string prompt("Hello, my name is Bond...James Bond."), del(" .,?!"), tail;
  const size_t n = 4;
  for(size_t i = 0; i < prompt.length(); ++i)
    if(del.find(prompt[i]) != std::string::npos)
    prompt[i] = ' ';
  std::istringstream ist(prompt);
  while(ist >> tail)
    std::cout << ( tail.length() <= n? tail + " " : "");
  return 0;
}