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 41

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= $\{ S \rightarrow A B a , S \rightarrow B a , A \rightarrow a B , A B \rightarrow b , B \rightarrow a b \}$
are derivable from S ?
(1) ba ,
(2) ab ,
(3) baab,
(4) aababa,
(5) aba

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Definitions:

Spicules

Slender skeletal spikes made of calcium carbonate or silica; found in sponges and some other animals.

Amoeboid Cells

Cells that move or feed by forming extensions of their cytoplasm called pseudopodia, typical of amoebas.

Sponges

Simple aquatic animals belonging to the phylum Porifera, characterized by their porous bodies through which water flows.

Correct Phylum

The appropriate classification category in the biological taxonomy system that groups together organisms sharing a common basic structure.