Question: who plays danny's sons on blue bloods
[{'answer': 'Tony Terraciano', 'provenance': [{'wikipedia_id': '47422881', 'title': 'List of Blue Bloods characters', 'start_paragraph_id': 8, 'start_character': 149, 'end_paragraph_id': 8, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Reagan family.:Frank Reagan.:Biography and family.\n'}]}, {'answer': 'Andrew Terraciano', 'provenance': [{'wikipedia_id': '47422881', 'title': 'List of Blue Bloods characters', 'start_paragraph_id': 8, 'start_character': 183, 'end_paragraph_id': 8, 'end_character': 200, 'bleu_score': 1.0, 'section': 'Section::::Reagan family.:Frank Reagan.:Biography and family.\n'}]}]