Question: when is the start of the 2018 nba season
[{'answer': 'October 16 , 2018', 'provenance': [{'wikipedia_id': '56791266', 'title': '2018–19 NBA season', 'start_paragraph_id': 41, 'start_character': 28, 'end_paragraph_id': 41, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Regular season.\n'}]}, {'provenance': [{'wikipedia_id': '56791266', 'title': '2018–19 NBA season', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 342, 'bleu_score': 0.597705507137773, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18250372715936882258}, 'section': 'Section::::Abstract.'}]}]