Question: who sang feed the birds in mary poppins
[{'answer': 'Mary Poppins', 'provenance': [{'wikipedia_id': '7471125', 'title': 'Feed the Birds', 'start_paragraph_id': 1, 'start_character': 141, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7471125', 'title': 'Feed the Birds', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 421, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12256251851823842247}, 'section': 'Section::::Abstract.'}]}]