Question: who does the justice league fight in the new movie
[{'answer': 'Steppenwolf', 'provenance': [{'wikipedia_id': '44120383', 'title': 'Justice League (film)', 'start_paragraph_id': 1, 'start_character': 657, 'end_paragraph_id': 1, 'end_character': 668, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44120383', 'title': 'Justice League (film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 695, 'bleu_score': 0.8172622624793691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6297558735517808681}, 'section': 'Section::::Abstract.'}]}]