Question: where is the eurovision song contest being held 2018
[{'answer': 'the Altice Arena in Lisbon', 'provenance': [{'wikipedia_id': '52859040', 'title': 'Eurovision Song Contest 2018', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 26, 'bleu_score': 0.668740304976422, 'section': 'Section::::Location.:Venue.\n'}]}]