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
['4807', '5651', '5319', 'z', '4707', '5927', 'd', '2437', 'P', '6653', 'a', '1813', 'p', 'w', '1307', '3897', '8571', '2499', 'P', 'W', 'C']