Question: who does patrick stewart play in star trek
[{'answer': 'Captain Jean - Luc Picard', 'provenance': [{'wikipedia_id': '70938', 'title': 'Patrick Stewart', 'start_paragraph_id': 17, 'start_character': 40, 'end_paragraph_id': 17, 'end_character': 66, 'bleu_score': 1.0, 'section': 'Section::::Career.:Film and TV career.:"Star Trek: The Next Generation".\n'}]}, {'provenance': [{'wikipedia_id': '70938', 'title': 'Patrick Stewart', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 538, 'bleu_score': 0.6908649087949561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1867219350495671942}, 'section': 'Section::::Abstract.'}]}]