$(15$ pts$)$ Using your grammar from Question #$2,$ derive the following sentence. You must show each

sentential form $/$ step for the derivation. If the sentence cannot be derived, stop at the last step that you

could derive and write "Cannot Continue Derivation".

Sentence: $,a=$ const ;$b=a$;$c=a+$ const $\frac{?}{?}$ const ;

::::$=<mi\; id="EditorElement\_380773">|</mi>$::$=+|-{|}^{**}||,a=a+b-c$;$c=d-$;$d=$::::::::::$=+|-{|}^{**}||,a=a**+c$;$b=\%a$;$d=$::$=a|b|c|d$::$=+|-{|}^{**}||$