Question: who sings half the dad he didn't have to be
[{'answer': 'Brad Paisley', 'provenance': [{'wikipedia_id': '12271926', 'title': "He Didn't Have to Be", 'start_paragraph_id': 1, 'start_character': 90, 'end_paragraph_id': 1, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12271926', 'title': "He Didn't Have to Be", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 290, 'bleu_score': 0.915132941383415, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3956390393518221064}, 'section': 'Section::::Abstract.'}]}]