Question: pretty little liars how did jenna go blind
[{'answer': 'firework', 'provenance': [{'wikipedia_id': '28572147', 'title': 'Jenna Marshall', 'start_paragraph_id': 15, 'start_character': 217, 'end_paragraph_id': 15, 'end_character': 225, 'bleu_score': 1.0, 'section': 'Section::::Novels storylines.\n'}]}, {'provenance': [{'wikipedia_id': '28572147', 'title': 'Jenna Marshall', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 567, 'bleu_score': 0.9796927878356411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14221843432235401587}, 'section': 'Section::::Novels storylines.\n'}]}]