Which of the following grammar rules violate the requirement of an operator grammar? P, Q, R are non terminals, and r, s, t are terminals. 1. P Q R 2. P Q S R 3. P 4. P Q t R r

Which of the following grammar rules violate the requirement of an ope

1.	Which of the following grammar rules violate the requirement of an operator grammar? P, Q, R are non terminals, and r, s, t are terminals. 1. P Q R 2. P Q S R 3. P 4. P Q t R r
A.	1 only
B.	1 and 3
C.	2 and 3
D.	3 and 4
Answer» C. 2 and 3

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Which of the following grammar rules violate the requirement of an operator grammar? P, Q, R are non terminals, and r, s, t are terminals. 1. P Q R 2. P Q S R 3. P 4. P Q t R r

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