Consider the following open sentences:
B(x) : "x is a baby,"
D(x) : "x is a dancer,"
F(x) : "x is able to fly,"
C(x) : "x is cute."

Suppose the universal set consists of all people. Express each of these statements using quantifiers and logical connectives.
(a) Babies are not dancers.
(b) Nobody is cute who is able to fly.
(c) Persons who don't dance are cute.
(d) Babies are not able to fly.
(e) Does (d) follow logically from (a), (b) and (c)? If not, is there a correct conclusion?