Question: who came up with the bid rent theory
[{'answer': 'David Ricardo', 'provenance': [{'wikipedia_id': '8365028', 'title': 'Bid rent theory', 'start_paragraph_id': 6, 'start_character': 209, 'end_paragraph_id': 6, 'end_character': 222, 'bleu_score': 1.0, 'section': 'Section::::Agricultural analogy.\n'}]}, {'provenance': [{'wikipedia_id': '8365028', 'title': 'Bid rent theory', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 909, 'bleu_score': 0.970407102359722, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11764916053529665094}, 'section': 'Section::::Agricultural analogy.\n'}]}]