class People {

       String name;
       String age;
       String address;

    public boolean isAttributeEqual(final People dupPeop)
          {
           return this.address.equals(dupPeop.address) && this.age.equals(dupPeop.age) && this.name.equals(dupPeop.name);
          }


     public static List<People> groupSimilar(final List<People> people)
 {
   List<People> duplicatePeople = new ArrayList<>(people);
   for (Iterator<People> iterator = duplicatePeople.iterator();   iterator.hasNext();)
   {
     People people2 = iterator.next();
     for (People orignalPeople : people)
     {
      if (!orignalPeople.equals(people2) &&  orignalPeople.isAttributeEqual(people2))
      {
      iterator.remove();
      people2 = iterator.next();
    }
  }
}
return duplicatePeople;
}
}