Using the predicate symbols shown and appropriate quantifiers, write each English language statement as a predicate wff. (The domain is the whole world.)

B(x) is "x is a ball."
R(x) is "x is round."
S(x) is "x is a soccer ball."

(1) All balls are round.
(2) Not all balls are soccer balls.
(3) All soccer balls are round.
(4) Some balls are not round