Question: who sang i just called to say i love you
[{'answer': 'Stevie Wonder', 'provenance': [{'wikipedia_id': '2724007', 'title': 'I Just Called to Say I Love You', 'start_paragraph_id': 1, 'start_character': 82, 'end_paragraph_id': 1, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2724007', 'title': 'I Just Called to Say I Love You', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 178, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17533568498251349717}, 'section': 'Section::::Abstract.'}]}]