A function which will take an item and a list and return a boolean of whether or not the item was found on the list or any sublists.

```
(define is-present?
  (lambda (item lis)
    (if (null? lis) #f
       (if (eqv? item (car lis))
       #t
       (is-present? (item (cdr lis)))))))

```

I am able to search the element in a plain list but when there is a sublist in the list it fails.