Question: how many goals did willian scored last season
[{'answer': '12', 'provenance': [{'wikipedia_id': '9431059', 'title': 'Willian (footballer, born 1988)', 'start_paragraph_id': 17, 'start_character': 16, 'end_paragraph_id': 17, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Club career.:Shakhtar Donetsk.:2010–11 season.\n'}]}]