Question: who plays the main guy in pitch perfect
[{'answer': 'Skylar Astin', 'provenance': [{'wikipedia_id': '34086866', 'title': 'Pitch Perfect', 'start_paragraph_id': 1, 'start_character': 151, 'end_paragraph_id': 1, 'end_character': 163, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34086866', 'title': 'Pitch Perfect', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 723, 'bleu_score': 0.653864713878687, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2237258874679229896}, 'section': 'Section::::Plot.\n'}]}]