Question: who sings the song now we are free
[{'answer': 'Gerrard', 'provenance': [{'wikipedia_id': '403631', 'title': 'Lisa Gerrard', 'start_paragraph_id': 0, 'start_character': 5, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '403631', 'title': 'Lisa Gerrard', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 487, 'bleu_score': 0.978138775770484, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12606632265581121039}, 'section': 'Section::::Vocal ability.\n'}]}]