Question: 2 . ( 1 4 pts ) Let G = ( V , Sigma , R , STMT ) be the following grammar: STMT

2.(14 pts) Let G =(V,\Sigma , R,STMT) be the following grammar:
STMT->ASSIGN|IF|IF-ELSE
IF-> if condition STMT
IF-ELSE-> if condition STMT else STMT
ASSIGN-> a:=1
\Sigma ={if,condition,else,a:=1}
V ={STMT,IF,IF-ELSE,ASSIGN}
1
G is a natural-looking grammar for a fragment of a programming language, but G is
ambiguous.
(a) Show that G is ambiguous.
(b) Give a new unambiguous grammar for the same language.2.(14 pts) Let G =(V,\Sigma , R,STMT) be the following grammar:
STMT->ASSIGN|IF|IF-ELSE
IF-> if condition STMT
IF-ELSE-> if condition STMT else STMT
ASSIGN-> a:=1
\Sigma ={if,condition,else,a:=1}
V ={STMT,IF,IF-ELSE,ASSIGN}
1
G is a natural-looking grammar for a fragment of a programming language, but G is
ambiguous.
(a) Show that G is ambiguous.
(b) Give a new unambiguous grammar for the same language.

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