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