On some evenings, you can watch the sun set, while a full moon rises in another part of the sky!
(you; can watch; the sun set; T:while a full moon rises in another part of the sky; T:On some evenings) (a full moon; rises; L:in another part of the sky)
you a full moon
can watch rises
the sun set T:while a full moon rises in another part of the sky T:On some evenings
L:in another part of the sky