请问这道菜有多少道工序？
其中以蒸、沤、平、扎、坠五道工序最为重要。[{'character': '其', 'pinyin': 'qi2', 'highest pitch': 9.37, 'lowest pitch': 8.76, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 10.62, 'lowest pitch': 8.76, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '以', 'pinyin': 'i3', 'highest pitch': 10.16, 'lowest pitch': 5.59, 'duration': 0.33, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '蒸', 'pinyin': 'zheng1', 'highest pitch': 10.81, 'lowest pitch': 10.51, 'duration': 0.4, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.14}, {'character': '沤', 'pinyin': 'ou4', 'highest pitch': 11.13, 'lowest pitch': 6.38, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '平', 'pinyin': 'ping2', 'highest pitch': 9.99, 'lowest pitch': 6.62, 'duration': 0.5, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '扎', 'pinyin': 'zha1', 'highest pitch': 10.93, 'lowest pitch': 10.67, 'duration': 0.39, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.11}, {'character': '坠', 'pinyin': 'zhuei4', 'highest pitch': 11.51, 'lowest pitch': 6.72, 'duration': 0.37, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.19}, {'character': '五', 'pinyin': 'u3', 'highest pitch': 8.38, 'lowest pitch': 6.57, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '道', 'pinyin': 'dao4', 'highest pitch': 11.07, 'lowest pitch': 6.71, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '工', 'pinyin': 'gong1', 'highest pitch': 9.28, 'lowest pitch': 8.49, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '序', 'pinyin': 'xv4', 'highest pitch': 9.25, 'lowest pitch': 7.3, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '最', 'pinyin': 'zuei4', 'highest pitch': 9.31, 'lowest pitch': 7.0, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 7.13, 'lowest pitch': 6.53, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '重', 'pinyin': 'zhong4', 'highest pitch': 9.87, 'lowest pitch': 6.98, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '要', 'pinyin': 'iao4', 'highest pitch': 7.39, 'lowest pitch': 5.78, 'duration': 0.29, 'prosody hierarchy': '#4'}]