Question: who is the star of the movie taken
[{'answer': 'Liam Neeson', 'provenance': [{'wikipedia_id': '15593618', 'title': 'Taken (film)', 'start_paragraph_id': 1, 'start_character': 145, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15593618', 'title': 'Taken (film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 472, 'bleu_score': 0.919557221389063, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8687187489200790590}, 'section': 'Section::::Abstract.'}]}]