Question: who is playing in the mls all star game 2018
[{'answer': 'MLS All - Stars'}, {'answer': 'Juventus', 'provenance': [{'wikipedia_id': '55590639', 'title': '2018 MLS All-Star Game', 'start_paragraph_id': 1, 'start_character': 218, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55590639', 'title': '2018 MLS All-Star Game', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 0.5898960578751651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11023444627692480084}, 'section': 'Section::::Abstract.'}]}]