Question: who sang the green green grass of home
[{'answer': 'Johnny Darrell', 'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 97, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Porter Wagoner', 'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 158, 'end_paragraph_id': 1, 'end_character': 172, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Bobby Bare', 'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 257, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tom Jones', 'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 385, 'end_paragraph_id': 1, 'end_character': 394, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Jerry Lee Lewis', 'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 275, 'end_paragraph_id': 1, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3238724', 'title': 'Green, Green Grass of Home', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 474, 'bleu_score': 0.653869281445965, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14012568032316391879}, 'section': 'Section::::Abstract.'}]}]