Question: where was ex on the beach season 4 filmed
[{'answer': 'Portugal', 'provenance': [{'wikipedia_id': '42177411', 'title': 'Ex on the Beach (British TV series)', 'start_paragraph_id': 13, 'start_character': 82, 'end_paragraph_id': 13, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Series.:Series 4 (2016).\n'}]}, {'provenance': [{'wikipedia_id': '42177411', 'title': 'Ex on the Beach (British TV series)', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 666, 'bleu_score': 0.9822204502117851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16060207735714652460}, 'section': 'Section::::Series.:Series 4 (2016).\n'}]}]