Question: who won 2017 atp mexico open hard court tennis tournament
[{'answer': 'Sam Querrey'}, {'answer': 'Lesia Tsurenko', 'provenance': [{'wikipedia_id': '7353283', 'title': 'Mexican Open (tennis)', 'start_paragraph_id': 4, 'start_character': 323, 'end_paragraph_id': 4, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Past finals.\n'}]}, {'answer': 'Jamie Murray'}, {'answer': 'Bruno Soares'}, {'answer': 'Darija Jurak'}, {'answer': 'Anastasia Rodionova'}]