Give English descriptions of the languages represented by the following regular expressions. The descriptions should be simple.

a) (0 + 1)1(0 + 1) + (0 + 1)1(0 + 1)(0 + 1)

b) (a + b + c) b(a + b + c) c(a + b + c) + (a + b + c) c(a + b + c) b(a + b + c)