Question: I need a code ASAP !!! in PYTHON 2 that checks if a string belongs to a cfg (context free grammar)in cnf(Chomsky normal form) using

I need a code ASAP !!!
in PYTHON 2 that checks if a string belongs to a cfg (context free grammar)in cnf(Chomsky normal form) using cyk (cocke-younger-kasami)
Input strings :
aaabb
aaabbb
Output:
Yes
No
Production rules of the cnf :
S->E(empty string)|AB|XB
T->AB|XB
X->AT
A->a
B->b

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