Question: how many goals has barcelona scored this season
[{'answer': '120', 'provenance': [{'wikipedia_id': '51925083', 'title': '2017–18 FC Barcelona season', 'start_paragraph_id': 22, 'start_character': 174, 'end_paragraph_id': 22, 'end_character': 177, 'bleu_score': 1.0, 'section': 'Section::::Season overview.:August.\n'}]}]