(5 pts] Consider the set of sequences of digits defined below: L = { dt de [0-9], constraint } where constraint is one of the following: (a) "the first digit of d+ is not 0" (b) "no adjacent digits of d+ are the same (c) "d+ represents an even number" (d) dt represents a multiple of 5" (e) "d+ represents a prime number" For each for the constraints listed above, decide whether it is a syntax specification, a semantic specifica- tion, or both. Briefly justify your answer. Note that syntactic specifications are about (explicit) textual representation and semantic specifications are about (implicit) mathematical properties