Question: who starred in the inn of the sixth happiness
[{'answer': 'Ingrid Bergman', 'provenance': [{'wikipedia_id': '349874', 'title': 'The Inn of the Sixth Happiness', 'start_paragraph_id': 1, 'start_character': 337, 'end_paragraph_id': 1, 'end_character': 351, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Curt Jürgens', 'provenance': [{'wikipedia_id': '349874', 'title': 'The Inn of the Sixth Happiness', 'start_paragraph_id': 1, 'start_character': 367, 'end_paragraph_id': 1, 'end_character': 379, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Robert Donat', 'provenance': [{'wikipedia_id': '349874', 'title': 'The Inn of the Sixth Happiness', 'start_paragraph_id': 1, 'start_character': 458, 'end_paragraph_id': 1, 'end_character': 470, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]