This question is about context-free grammars and parsing, and Turing machines (TM’s) i) Consider the following context-free grammar G over the alphabet Σ = {a, b, c}: S → aSb | ε | acSba | abc where S is the start variable. Using the rules of the grammar G, construct parse trees for the words aabcb and aacbab.  ii) Give 2 words (from Σ∗) that are not in the language accepted by the grammar G of Question i.Justify your answer, explaining why are the words you give not accepted

Database System Concepts
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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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This question is about context-free grammars and parsing, and Turing machines (TM’s)

i) Consider the following context-free grammar G over the alphabet Σ = {a, b, c}:

SaSb | ε | acSba | abc

where S is the start variable. Using the rules of the grammar G, construct parse trees for the
words aabcb and aacbab

ii) Give 2 words (from Σ) that are not in the language accepted by the grammar G of Question i.Justify your answer, explaining why are the words you give not accepted

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