Question: 1 solar day is equal to how many hours
[{'answer': '24 hours', 'provenance': [{'wikipedia_id': '8376', 'title': 'Day', 'start_paragraph_id': 6, 'start_character': 124, 'end_paragraph_id': 6, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Introduction.:Apparent and mean solar day.\n'}]}, {'provenance': [{'wikipedia_id': '8376', 'title': 'Day', 'start_paragraph_id': 3, 'start_character': 610, 'end_paragraph_id': 3, 'end_character': 994, 'bleu_score': 0.64753937873528, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1367035910587571962}, 'section': 'Section::::Abstract.'}]}]