[计] EOL system, extended zero-sided Lindenmayer system
guǎng yì lín shì wú guān xì tǒng ㄍㄨㄤˇ ㄧˋ ㄌㄧㄣˊ ㄕˋ ㄨˊ ㄍㄨㄢ ㄒㄧˋ ㄊㄨㄥˇ