Question: who translated the song we shall overcome in bengali
[{'answer': 'Bengali folk singer Hemanga Biswas', 'provenance': [{'wikipedia_id': '313670', 'title': 'We Shall Overcome', 'start_paragraph_id': 30, 'start_character': 219, 'end_paragraph_id': 30, 'end_character': 253, 'bleu_score': 1.0, 'section': 'Section::::Widespread adaptation.\n'}]}, {'provenance': [{'wikipedia_id': '313670', 'title': 'We Shall Overcome', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 797, 'bleu_score': 0.9618830282233141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5511131892996863293}, 'section': 'Section::::Widespread adaptation.\n'}]}]