刘文博的父母去哪儿了？
刘文博现在由爷爷奶奶照顾。[{'character': '刘', 'pinyin': 'liou2', 'highest pitch': 9.7, 'lowest pitch': 8.6, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '文', 'pinyin': 'uen2', 'highest pitch': 9.76, 'lowest pitch': 8.96, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '博', 'pinyin': 'bo2', 'highest pitch': 8.86, 'lowest pitch': 7.41, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '现', 'pinyin': 'xian4', 'highest pitch': 9.5, 'lowest pitch': 8.13, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 8.53, 'lowest pitch': 7.06, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '由', 'pinyin': 'iou2', 'highest pitch': 8.91, 'lowest pitch': 6.77, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '爷', 'pinyin': 'ie2', 'highest pitch': 8.53, 'lowest pitch': 7.28, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '爷', 'pinyin': 'ie5', 'highest pitch': 10.64, 'lowest pitch': 8.48, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '奶', 'pinyin': 'nai3', 'highest pitch': 10.43, 'lowest pitch': 4.68, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '奶', 'pinyin': 'nai5', 'highest pitch': 5.14, 'lowest pitch': 4.61, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '照', 'pinyin': 'zhao4', 'highest pitch': 8.72, 'lowest pitch': 6.32, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '顾', 'pinyin': 'gu5', 'highest pitch': 5.82, 'lowest pitch': 4.59, 'duration': 0.2, 'prosody hierarchy': '#4'}]