Question: who called for the constitutional convention to be held
[{'answer': 'delegates from five states', 'provenance': [{'wikipedia_id': '1743283', 'title': 'Constitutional Convention (United States)', 'start_paragraph_id': 10, 'start_character': 48, 'end_paragraph_id': 10, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Historical context.\n'}]}, {'provenance': [{'wikipedia_id': '1743283', 'title': 'Constitutional Convention (United States)', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 514, 'bleu_score': 0.6853746186066131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13448606007550031059}, 'section': 'Section::::Historical context.\n'}]}]