Complex sentence: The "empirical method" identifies the genre of a film by comparing it to a list of films already deemed to fall within a certain genre The "a priori" method uses common generic elements which are identified in advance.
Split into simpler sentences: The "empirical method" identifies the genre of a film by comparing it to a list of films already deemed to fall within a certain genre. The a priori method uses common generic elements which are identified in advance.