Question: how many flavors of now and laters are there
[{'answer': 'Nineteen', 'provenance': [{'wikipedia_id': '2386243', 'title': 'Now and Later', 'start_paragraph_id': 1, 'start_character': 160, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2386243', 'title': 'Now and Later', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 242, 'bleu_score': 0.9493253852526031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13369133827716857542}, 'section': 'Section::::Abstract.'}]}]