Question: how many different types of daylilies are there
[{'answer': '19 species', 'provenance': [{'wikipedia_id': '266606', 'title': 'Daylily', 'start_paragraph_id': 12, 'start_character': 58, 'end_paragraph_id': 12, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Taxonomy.:Species.\n'}]}, {'provenance': [{'wikipedia_id': '266606', 'title': 'Daylily', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 68, 'bleu_score': 0.5828233954152651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1048832594274679247}, 'section': 'Section::::Taxonomy.:Species.\n'}]}]