Question: who played bruce willis's son in a good day to die hard
[{'answer': 'Jai Courtney', 'provenance': [{'wikipedia_id': '34228306', 'title': 'A Good Day to Die Hard', 'start_paragraph_id': 1, 'start_character': 445, 'end_paragraph_id': 1, 'end_character': 457, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]