Question: in what medieval language is this work sung sumer is icumen
[{'answer': 'medieval English', 'provenance': [{'wikipedia_id': '663594', 'title': 'Sumer Is Icumen In', 'start_paragraph_id': 1, 'start_character': 77, 'end_paragraph_id': 1, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '663594', 'title': 'Sumer Is Icumen In', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12899875606084920632}, 'section': 'Section::::Abstract.'}]}]