Question: how many types of birds of paradise are there
[{'answer': '42', 'provenance': [{'wikipedia_id': '162540', 'title': 'Bird-of-paradise', 'start_paragraph_id': 1, 'start_character': 202, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '162540', 'title': 'Bird-of-paradise', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 706, 'bleu_score': 0.9831208473513011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9176436491630999762}, 'section': 'Section::::Abstract.'}]}]