Question: who conducted the orchestra at carnigie hall in 1891
[{'answer': 'maestro Walter Damrosch'}, {'provenance': [{'wikipedia_id': '169321', 'title': 'Carnegie Hall', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 989, 'bleu_score': 0.9582713128760101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16321733615913203552}, 'section': 'Section::::History.\n'}]}]