Question: what does the lorenz curve illustrate about the economy
[{'answer': 'distribution of income', 'provenance': [{'wikipedia_id': '18135', 'title': 'Lorenz curve', 'start_paragraph_id': 1, 'start_character': 68, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18135', 'title': 'Lorenz curve', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14839171718067683315}, 'section': 'Section::::Abstract.'}]}]