Question: who proposed an influential model of working memory
[{'answer': 'Alan Baddeley', 'provenance': [{'wikipedia_id': '1008632', 'title': "Baddeley's model of working memory", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Graham Hitch', 'provenance': [{'wikipedia_id': '1008632', 'title': "Baddeley's model of working memory", 'start_paragraph_id': 1, 'start_character': 18, 'end_paragraph_id': 1, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1008632', 'title': "Baddeley's model of working memory", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 305, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14632262040583304033}, 'section': 'Section::::Abstract.'}]}]