What are the name and code of the location with the smallest number of documents?
return locations ;return documents in #1 ;return number of  #2 for each #1 ;return #1 where #3 is  lowest ;return name of #4 ;return code of #4 ;return #5 ,  #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']