Q 42. paper3, D12.

 The grammar ‘G1’

S ->OSO| ISI | 0|1|e

and the grammar‘G2’ is

S ->as |asb| X,

X ->Xa | a.

Which is the correct statement ?

(A) G1 is ambiguous, G2 is unambiguous

(B) G1 is unambiguous, G2 is ambiguous

(C) Both G1 and G2 are ambiguous

(D) Both G1 and G2 are unambiguous

Answer(B).