Question: how many planets are their to visit in no man's sky
[{'answer': 'over 18 quintillion', 'provenance': [{'wikipedia_id': '41301912', 'title': "No Man's Sky", 'start_paragraph_id': 1, 'start_character': 433, 'end_paragraph_id': 1, 'end_character': 452, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41301912', 'title': "No Man's Sky", 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1021, 'bleu_score': 0.942581468820288, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18435361473577025091}, 'section': 'Section::::Gameplay.\n'}]}]