Question: when does the new la liga season start
[{'answer': '18 August 2017', 'provenance': [{'wikipedia_id': '53213744', 'title': '2017–18 La Liga', 'start_paragraph_id': 1, 'start_character': 143, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53213744', 'title': '2017–18 La Liga', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 230, 'bleu_score': 0.611609165034104, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11370220249869640270}, 'section': 'Section::::Abstract.'}]}]