Question: in a circular flow diagram who pays for goods and services
[{'answer': 'Households', 'provenance': [{'wikipedia_id': '1589660', 'title': 'Circular flow of income', 'start_paragraph_id': 31, 'start_character': 96, 'end_paragraph_id': 31, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Types of models.:Two-sector model.\n'}]}]