Question: largest high school graduating class in us history
[{'answer': '1561 graduates', 'provenance': [{'wikipedia_id': '3228275', 'title': 'Plano East Senior High School', 'start_paragraph_id': 4, 'start_character': 86, 'end_paragraph_id': 4, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3228275', 'title': 'Plano East Senior High School', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 208, 'bleu_score': 0.639452019905954, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5579008298659994583}, 'section': 'Section::::Abstract.'}]}]