In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the alphabetical elements in the given list. Return 0 if no alphabetical element in the list
['Y', 'Q', '5991', '4321', '7851', 'Z', 'g', 'O', 'o', 'o', 'E', 'n', 'a', '151', 'l', '7935', 'K', '517']