Question: how long was titanic at sea before it sank
[{'answer': 'four days', 'provenance': [{'wikipedia_id': '19285924', 'title': 'RMS Titanic', 'start_paragraph_id': 3, 'start_character': 167, 'end_paragraph_id': 3, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19285924', 'title': 'RMS Titanic', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 919, 'bleu_score': 0.885755093635139, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6562058264799682342}, 'section': 'Section::::Abstract.'}]}]