Question: who sings the song as long as you love me
[{'answer': 'Backstreet Boys', 'provenance': [{'wikipedia_id': '36723661', 'title': 'As Long as You Love Me (Backstreet Boys song)', 'start_paragraph_id': 0, 'start_character': 24, 'end_paragraph_id': 0, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36723661', 'title': 'As Long as You Love Me (Backstreet Boys song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 385, 'bleu_score': 0.815010399330921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4396698679009253028}, 'section': 'Section::::Abstract.'}]}]