Question: who sang the original me and bobby mcgee
[{'answer': 'Roger Miller', 'provenance': [{'wikipedia_id': '502303', 'title': 'Me and Bobby McGee', 'start_paragraph_id': 1, 'start_character': 140, 'end_paragraph_id': 1, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '502303', 'title': 'Me and Bobby McGee', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 446, 'bleu_score': 0.636875725195982, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1104073490543330568}, 'section': 'Section::::Abstract.'}]}]