Question: who developed the first governmental system based on merit
[{'answer': 'the Qin and Han dynasties', 'provenance': [{'wikipedia_id': '463290', 'title': 'Merit system', 'start_paragraph_id': 3, 'start_character': 54, 'end_paragraph_id': 3, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '463290', 'title': 'Merit system', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 656, 'bleu_score': 0.9810405040225261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15452196717248606579}, 'section': 'Section::::History.\n'}]}]