Symbolize the sentences below using the following translation scheme:

Sx: is a superhero
Fx: can fly
Tx: wears tights
Mx: wears a mask
b: Batman
c:  Catwoman

1. There are no superheroes.
2. There are some superheroes.
3. All superheroes wear tights.
4. Not all superheroes wear tights.
5. Some superheroes wear tights.
6. Some superheroes do not wear tights.
7. Only superheroes wear tights.
8. No superheroes wear tights.
9. Superheroes wear tights.
10. All masked superheroes wear tights.
11. Not all masked superheroes wear tights.
12. Some masked superheroes wear tights.
13. Some masked superheroes do not wear tights.
14. Not every superhero can fly though they all wear tights.
15. Batman, who is a superhero, cannot fly.
16. Catwoman is not a superhero but she wears a mask.
17. Neither Batman nor Catwoman can fly, but they both wear masks.
18. Some superheroes wear tights but not masks.
19. Some superheroes who wear tights also wear masks.
20. Superheroes who wear tights also wear masks.
21. Superheroes, who wear tights, also wear masks.
22. Unless a superhero wears a mask he does not wear tights..
23. No superhero who wears a mask fails to wear tights.
24. All superheroes either wear masks or wear tights.
25. Batman is a superhero who wears tights.