What is the language that was used most often in songs with resolution above 500?
return songs ;return resolutions of #1 ;return #1 where #2 is  higher than 500 ;return languages used in #3 ;return number of  #3 for each #4 ;return #4 where #5 is  the  highest
['select', 'project', 'comparative', 'project', 'group', 'comparative']