Question: who introduced the swedish nightingale jenny lind to america
[{'answer': 'P.T. Barnum'}, {'provenance': [{'wikipedia_id': '247916', 'title': 'Jenny Lind', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 593, 'bleu_score': 0.9582628442084681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14190328318013301624}, 'section': 'Section::::Abstract.'}]}]