Question: where was the first state of origin held
[{'answer': "Sydney 's Agricultural Ground", 'provenance': [{'wikipedia_id': '1954843', 'title': 'State of Origin series', 'start_paragraph_id': 11, 'start_character': 50, 'end_paragraph_id': 11, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::History.:Interstate Rugby League prior to 1980.\n'}]}, {'provenance': [{'wikipedia_id': '1954843', 'title': 'State of Origin series', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 254, 'bleu_score': 0.869296000773157, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17393463183849924372}, 'section': 'Section::::History.:Interstate Rugby League prior to 1980.\n'}]}]