Question: who sang the song please come to boston
[{'answer': 'Dave Loggins', 'provenance': [{'wikipedia_id': '12840858', 'title': 'Please Come to Boston', 'start_paragraph_id': 1, 'start_character': 94, 'end_paragraph_id': 1, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12840858', 'title': 'Please Come to Boston', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 474, 'bleu_score': 0.9572799132941561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12698605713827395964}, 'section': 'Section::::Abstract.'}]}]