Question: according to the proverb what is the mother of invention
[{'answer': 'Necessity', 'provenance': [{'wikipedia_id': '36436887', 'title': 'Necessity is the mother of invention', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36436887', 'title': 'Necessity is the mother of invention', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 154, 'bleu_score': 0.9243880458347601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15730671123435935653}, 'section': 'Section::::Abstract.'}]}]