Question: who plays liam's brother on bold and the beautiful
[{'answer': 'Darin Brooks', 'provenance': [{'wikipedia_id': '40717834', 'title': 'Spencer family (The Bold and the Beautiful)', 'start_paragraph_id': 11, 'start_character': 27, 'end_paragraph_id': 11, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::Family members.:Third generation.\n'}]}]