Question: who plays han solo in solo a star wars story
[{'answer': 'Alden Ehrenreich', 'provenance': [{'wikipedia_id': '52193417', 'title': 'Solo: A Star Wars Story', 'start_paragraph_id': 1, 'start_character': 300, 'end_paragraph_id': 1, 'end_character': 316, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]