Question: who played william in the film goodnight mr tom
[{'answer': 'Nick Robinson', 'provenance': [{'wikipedia_id': '6813668', 'title': 'Nick Robinson (English actor)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6813668', 'title': 'Nick Robinson (English actor)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 562, 'bleu_score': 0.940298458781994, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8848954065491183128}, 'section': 'Section::::Abstract.'}]}]