Question: who sang the original always on my mind
[{'answer': 'Gwen McCrae', 'provenance': [{'wikipedia_id': '1652526', 'title': 'Always on My Mind', 'start_paragraph_id': 1, 'start_character': 148, 'end_paragraph_id': 1, 'end_character': 159, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Brenda Lee', 'provenance': [{'wikipedia_id': '1652526', 'title': 'Always on My Mind', 'start_paragraph_id': 1, 'start_character': 203, 'end_paragraph_id': 1, 'end_character': 213, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1652526', 'title': 'Always on My Mind', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 191, 'bleu_score': 0.5625646981540341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7931095436659453950}, 'section': 'Section::::Abstract.'}]}]