List the name of tracks belongs to genre Rock and whose media type is MPEG audio file.
return tracks ;return genre of  #1 ;return #1 where  #2 is Rock ;return media types of  #1 ;return #1 where  #4 is MPEG ;return #1 of  both #3 and #5 ;return names of  #6
['select', 'project', 'comparative', 'project', 'comparative', 'intersection', 'project']