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Question

A context free language is called ambiguous if

a.

It has 2 or more left derivations for some terminal string ѡ є L (G)

b.

It has 2 or more right derivations for some terminal string ѡ є L (G)

c.

Both of the mentioned

d.

None of the mentioned

Answer: (b).It has 2 or more right derivations for some terminal string ѡ є L (G)

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Q. A context free language is called ambiguous if