perfers = {
'Tom': {'Movie1': 2.5, 'Movie2': 3.5, 'Movie3': 3.0, 'Movie4': 3.5, 'Movie5': 2.5, 'Movie6': 3.0}, 'Tom': {'Movie1': 2.5, 'Movie2': 3.perfers = {
'Tom': {'Movie1': 2.5, 'Movie2': 3.5, 'Movie3': 3.0, 'Movie4': 3.5, 'Movie5': 2.5, 'Movie6': 3.0}, 'Tom': {'Movie1': 2.5, 'Movie2': 3.