Question: who came up with the uses and gratifications theory
[{'answer': 'Elihu Katz', 'provenance': [{'wikipedia_id': '473324', 'title': 'Uses and gratifications theory', 'start_paragraph_id': 44, 'start_character': 65, 'end_paragraph_id': 44, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::History.:Stages of the theory.:Stage 2.\n'}]}, {'provenance': [{'wikipedia_id': '473324', 'title': 'Uses and gratifications theory', 'start_paragraph_id': 44, 'start_character': 0, 'end_paragraph_id': 44, 'end_character': 216, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5443396515165212828}, 'section': 'Section::::History.:Stages of the theory.:Stage 2.\n'}]}]