Question: 4 . Given the following grammar: S - > AB | aB A - > abb | B - > bbA ( a ) Simplify

4. Given the following grammar:
S -> AB | aB
A -> abb |
B -> bbA
(a) Simplify the grammar rules by removing any -productions, unit-productions, and useless productions.
(b) Convert the grammar in (a) into Chomsky normal form.
(c) Convert the grammar in (a) into Greibach normal form.

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