Let G Be the Phrase-Structure Grammar with Vocabulary $\{ S \rightarrow A B a , S \rightarrow B a , A \rightarrow a B , A B \rightarrow b , B \rightarrow a b \}$

question 22

Short Answer

Let G be the phrase-structure grammar with vocabulary V={A, B, a, b, S} , terminal element set T={a, b} , start symbol S , and production set P= $\{ S \rightarrow A B a , S \rightarrow B a , A \rightarrow a B , A B \rightarrow b , B \rightarrow a b \}$ - Which of these are derivable from ABa?
(1) ba ,
(2) abb ,
(3) aba ,
(4) b ,
(5) aababa

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Definitions:

Reaction Time

The amount of time it takes for an individual to respond to a stimulus.

Bone Density

The measurement of the amount of mineral matter per square centimeter of bones, indicating bone strength and risk for osteoporosis.

Basal Metabolic Rate

The rate at which the body uses energy while at rest to maintain vital functions such as breathing and keeping warm.

Lung Capacity

The maximum amount of air the lungs can hold, important for respiratory health and physical performance.