Given the following grammar, calculate the FIRST and FOLLOW sets: program global_vars global_vars var_list var_list scope public_vars public_vars private_vars private_vars stmt_list stmt_list stmt stmt -> global_vars scope - -> var_list SEMICOLON -> ID -> ID COMMA var_list -> ID LBRACE public_vars private_vars stmt_list RBRACE - -> PUBLIC COLON var_list SEMICOLON - -> PRIVATE COLON var_list SEMICOLON -> stmt -> stmt stmt list -> ID EQUAL ID SEMICOLON -> scope