Question: ( b ) What circumstances allow one to declare two grammars to be equivalent? With proper justification, show that the following grammars S - >

(b) What circumstances allow one to declare two grammars to be equivalent? With proper justification, show that the following grammars
S -> aSb|bSa|SS|a
and,
S -> aSb|bSa|a
are not equivalent.

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