这用来涂抹的是什么东西？
这类文字的涂抹工具不再是记号笔，而是类似煤灰的物质。[{'character': '这', 'pinyin': 'zhe4', 'highest pitch': 11.28, 'lowest pitch': 10.94, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '类', 'pinyin': 'lei4', 'highest pitch': 10.94, 'lowest pitch': 8.88, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '文', 'pinyin': 'uen2', 'highest pitch': 8.88, 'lowest pitch': 7.2, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '字', 'pinyin': 'zii4', 'highest pitch': 9.57, 'lowest pitch': 7.69, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.95, 'lowest pitch': 6.98, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '涂', 'pinyin': 'tu2', 'highest pitch': 10.09, 'lowest pitch': 6.98, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '抹', 'pinyin': 'mo3', 'highest pitch': 11.0, 'lowest pitch': 6.28, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '工', 'pinyin': 'gong1', 'highest pitch': 8.24, 'lowest pitch': 7.81, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '具', 'pinyin': 'jv4', 'highest pitch': 11.2, 'lowest pitch': 7.19, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '不', 'pinyin': 'bu2', 'highest pitch': 7.59, 'lowest pitch': 6.52, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '再', 'pinyin': 'zai4', 'highest pitch': 10.94, 'lowest pitch': 7.59, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.26, 'lowest pitch': 7.07, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '记', 'pinyin': 'ji4', 'highest pitch': 8.18, 'lowest pitch': 7.07, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '号', 'pinyin': 'hao4', 'highest pitch': 7.78, 'lowest pitch': 6.14, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '笔', 'pinyin': 'bi3', 'highest pitch': 6.59, 'lowest pitch': 4.49, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.29}, {'character': '而', 'pinyin': 'er2', 'highest pitch': 7.63, 'lowest pitch': 6.64, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.26, 'lowest pitch': 7.63, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '类', 'pinyin': 'lei4', 'highest pitch': 10.94, 'lowest pitch': 7.43, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '似', 'pinyin': 'sii4', 'highest pitch': 7.69, 'lowest pitch': 7.21, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '煤', 'pinyin': 'mei2', 'highest pitch': 7.21, 'lowest pitch': 6.1, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '灰', 'pinyin': 'huei1', 'highest pitch': 10.9, 'lowest pitch': 6.97, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.95, 'lowest pitch': 9.03, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '物', 'pinyin': 'u4', 'highest pitch': 9.03, 'lowest pitch': 6.88, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '质', 'pinyin': 'zhiii4', 'highest pitch': 12.56, 'lowest pitch': 6.35, 'duration': 0.27, 'prosody hierarchy': '#4'}]