Question: what season of big brother was vanessa on
[{'answer': 'the 2015 season', 'provenance': [{'wikipedia_id': '4863572', 'title': 'Vanessa Rousso', 'start_paragraph_id': 3, 'start_character': 180, 'end_paragraph_id': 3, 'end_character': 195, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4863572', 'title': 'Vanessa Rousso', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 211, 'bleu_score': 0.871393365020642, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8240779039243775479}, 'section': 'Section::::Abstract.'}]}]