Question: who plays juliet in the love actually movie
[{'answer': '( Keira Knightley )', 'provenance': [{'wikipedia_id': '370064', 'title': 'Love Actually', 'start_paragraph_id': 8, 'start_character': 7, 'end_paragraph_id': 8, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Plot.:Juliet, Peter and Mark.\n'}]}, {'provenance': [{'wikipedia_id': '370064', 'title': 'Love Actually', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 840, 'bleu_score': 0.9760182872635551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11572942187548168626}, 'section': 'Section::::Plot.:Juliet, Peter and Mark.\n'}]}]