20. Summarize the tokens in the following code #include int main() { int lowercase_vowel, uppercase_vowel; printf("Enter an alphabet: "); scanf("%c", &c); lowercase_vowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u'); char c; %D =%3= =3= 'A' || C == 'E' || c == 'T' || c == 'O' || c == =%3D =3= =%3= 'U'); if (lowercase_vowel || uppercase_vowel) printf("%c is a vowel.", c); printf("%c is a consonant.", c); else return 0; } Build CLR parsing table for the following grammar. ED E +T/ T TET*F/F FE (E) / id