Question: where did blair and serena go to school
[{'answer': 'Constance Billard', 'provenance': [{'wikipedia_id': '2238909', 'title': 'Serena van der Woodsen', 'start_paragraph_id': 3, 'start_character': 141, 'end_paragraph_id': 3, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Novel series.\n'}]}, {'provenance': [{'wikipedia_id': '2238909', 'title': 'Serena van der Woodsen', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 491, 'bleu_score': 0.923798274014845, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4057138871631964347}, 'section': 'Section::::Novel series.\n'}]}]