Question: who plays the mermaid in pirates of the caribbean 4
[{'answer': 'Àstrid Bergès - Frisbey', 'provenance': [{'wikipedia_id': '27100858', 'title': 'Àstrid Bergès-Frisbey', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Early life.\n'}]}, {'provenance': [{'wikipedia_id': '27100858', 'title': 'Àstrid Bergès-Frisbey', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 411, 'bleu_score': 0.8180675594084871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9213944062863551875}, 'section': 'Section::::Abstract.'}]}]