Given the following grammar for a subset of Java: Prog MoreClasses MainClass MainClass finalt classt idt { publict statict voidt main(String [] idt) { SeqofStats } MoreClasses ClassDecl MoreClasses ClassDecl class idt { VarDecl MethodDecl class idt extendst idt { VarDecl MethodDecl } VarDecl Type IdentifierList ; VarDecl finalt Type idt = numt; VarDecl | IdentifierList -> idt IdentifierList , idt Type intt | booleant voidt MethodDecl publict Type idt (FormalList) { VarDecl SeqofStats returnt Expr; } MethodDecl | FormalList -> Type idt FormalRest | FormalRest , Type idt FormalRest | SeqOfStatments -> Expr -> E Draw parse trees for the following programs (PLEASE UNDERLINE ALL TOKENS): a) final class Main { public static void main (String [] args) { class Two { int a; boolean b; final class Main { public static void main (String [] args) { class Two { int a; public int sum (int num) { return; } final class Main { public static void main (String [] args) { Given the following grammar for a subset of Java: Prog MoreClasses MainClass MainClass finalt classt idt { publict statict voidt main(String [] idt) { SeqofStats } MoreClasses ClassDecl MoreClasses ClassDecl class idt { VarDecl MethodDecl class idt extendst idt { VarDecl MethodDecl } VarDecl Type IdentifierList ; VarDecl finalt Type idt = numt; VarDecl | IdentifierList -> idt IdentifierList , idt Type intt | booleant voidt MethodDecl publict Type idt (FormalList) { VarDecl SeqofStats returnt Expr; } MethodDecl | FormalList -> Type idt FormalRest | FormalRest , Type idt FormalRest | SeqOfStatments -> Expr -> E Draw parse trees for the following programs (PLEASE UNDERLINE ALL TOKENS): a) final class Main { public static void main (String [] args) { class Two { int a; boolean b; final class Main { public static void main (String [] args) { class Two { int a; public int sum (int num) { return; } final class Main { public static void main (String [] args) {