Question: who sang without love where would we be now
[{'answer': 'The Doobie Brothers', 'provenance': [{'wikipedia_id': '6212153', 'title': "Long Train Runnin'", 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6212153', 'title': "Long Train Runnin'", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 290, 'bleu_score': 0.963949056609222, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2969090361485962486}, 'section': 'Section::::Abstract.'}]}]