Question: who directed the last two star wars movies
[{'answer': 'J.J. Abrams'}, {'answer': 'Rian Johnson', 'provenance': [{'wikipedia_id': '26678', 'title': 'Star Wars', 'start_paragraph_id': 12, 'start_character': 124, 'end_paragraph_id': 12, 'end_character': 136, 'bleu_score': 1.0, 'section': 'Section::::Film.\n'}]}]