Question: when did hollywood become the movie capital of the world
[{'answer': 'In the 1920s', 'provenance': [{'wikipedia_id': '53849', 'title': 'Hollywood', 'start_paragraph_id': 18, 'start_character': 337, 'end_paragraph_id': 18, 'end_character': 349, 'bleu_score': 1.0, 'section': 'Section::::History.:Motion picture industry.\n'}]}, {'provenance': [{'wikipedia_id': '53849', 'title': 'Hollywood', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 601, 'bleu_score': 0.978375183951072, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1347446955989917549}, 'section': 'Section::::History.:Motion picture industry.\n'}]}]