Write a lisp function called split that receives a list and returns a new list whose elements are the first and the second halves of the original list. Sample function outputs are given below: (split (1 2 3 4)) ((1 2) (3 4}} (split (1 2 3 4 5)) ((1 2 3) (4 5)) (split (1 (23) 4 5 6)) ((1 (23) 4) (5 6))