Question: who coined the term chunk for memory researchers
[{'answer': 'George Miller', 'provenance': [{'wikipedia_id': '931802', 'title': 'Chunking (psychology)', 'start_paragraph_id': 2, 'start_character': 473, 'end_paragraph_id': 2, 'end_character': 486, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '931802', 'title': 'Chunking (psychology)', 'start_paragraph_id': 2, 'start_character': 59, 'end_paragraph_id': 2, 'end_character': 761, 'bleu_score': 0.8860926624812171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11523900120205267668}, 'section': 'Section::::Abstract.'}]}]