private IEnumerable <Person> ParsePeople(string input)
        {
            var person = new Person();

            using (StringReader reader = new StringReader(input))
            {
                string line;
                int    linesPerPerson = 0;
                while ((line = reader.ReadLine()) != null || linesPerPerson > 0)
                {
                    if (!string.IsNullOrEmpty(line))
                    {
                        var keyValue = parserService.ParseKeyValuePair(line);
                        mapper.AddPersonAttributeToPerson(keyValue, person);
                        linesPerPerson++;
                    }
                    else
                    {
                        yield return(person);

                        linesPerPerson = 0;
                    }
                }
            }
        }