Count the good female superheroes.
good refers to alignment.id = 1; female refers to gender.id = 2;
SELECT COUNT(T1.id) FROM superhero AS T1 INNER JOIN alignment AS T2 ON T1.alignment_id = T2.id INNER JOIN gender AS T3 ON T1.gender_id = T3.id WHERE T2.alignment = 'Good' AND T3.gender = 'Female'