Show the description and code of the attraction type most tourist attractions belong to.
return attraction types ;return attractions with #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  highest ;return description of  #4 ;return code of  #4 ;return #5 ,  #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']