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var getStart = function(index, text){
  while(index > 0 && text[index] !== " "){
    index--;
  }
  return index;
}

var getEnd = function(index, text){
  while(index < text.length && text[index] !== " "){
    index++;
  }
  return index;
}

var getSelectedWord = function(firstIndex, lastIndex, text){
  return text.substring(getStart(firstIndex, text), getEnd(lastIndex, text)).split(' ');
}
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