Question: who is a in season 5 of pll
[{'answer': 'Troian Bellisario', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 248, 'end_paragraph_id': 77, 'end_character': 265, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Ashley Benson', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 324, 'end_paragraph_id': 77, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Tyler Blackburn', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 939, 'end_paragraph_id': 77, 'end_character': 954, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Lucy Hale', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 446, 'end_paragraph_id': 77, 'end_character': 455, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Ian Harding', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 1050, 'end_paragraph_id': 77, 'end_character': 1061, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Laura Leighton', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 1170, 'end_paragraph_id': 77, 'end_character': 1184, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Shay Mitchell', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 575, 'end_paragraph_id': 77, 'end_character': 588, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Janel Parrish', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 866, 'end_paragraph_id': 77, 'end_character': 879, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Sasha Pieterse', 'provenance': [{'wikipedia_id': '42194097', 'title': 'Pretty Little Liars (season 5)', 'start_paragraph_id': 77, 'start_character': 708, 'end_paragraph_id': 77, 'end_character': 722, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}]