Question: who plays emily junk in pitch perfect 2
[{'answer': 'Hailee Steinfeld', 'provenance': [{'wikipedia_id': '26260043', 'title': 'Hailee Steinfeld', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26260043', 'title': 'Hailee Steinfeld', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 608, 'bleu_score': 0.762529594308006, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17229212807858742962}, 'section': 'Section::::Abstract.'}]}]