This program will tell the user whether or not a given input string is within a language, given a context free grammar in chomsky normal form. At command line, run program as follows: ```$ python ...
CYK算法（Cocke–Younger–Kasami algorithm，缩写为CYK algorithm）是由约翰·科克，Younger和嵩忠雄共同研究出来大约发表于1965 ...
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