Question: who said the whole is greater than the sum
[{'answer': 'Gestalt psychologist Kurt Koffka', 'provenance': [{'wikipedia_id': '70402', 'title': 'Gestalt psychology', 'start_paragraph_id': 2, 'start_character': 192, 'end_paragraph_id': 2, 'end_character': 224, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '70402', 'title': 'Gestalt psychology', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 629, 'bleu_score': 0.7731685300181911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3256753795885951769}, 'section': 'Section::::Abstract.'}]}]