Question: who came up with the butterfly effect theory
[{'answer': 'Edward Lorenz', 'provenance': [{'wikipedia_id': '4024', 'title': 'Butterfly effect', 'start_paragraph_id': 2, 'start_character': 46, 'end_paragraph_id': 2, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4024', 'title': 'Butterfly effect', 'start_paragraph_id': 2, 'start_character': 4, 'end_paragraph_id': 2, 'end_character': 636, 'bleu_score': 0.8705586731821551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7155824303591215700}, 'section': 'Section::::Abstract.'}]}]