; Write the function ones that takes a sentence of integers as its input.
; It returns the total number of ones found in the numbers in the sentence.
;
; If you run the follow code, below, you should see duplicate outputs:
; 5
; 5
; 2
; 2
; 0
; 0

(ones '(315 21 994 101 2215))
5
(ones '(11))
2
(ones '(2 7 2023489874539))
0