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
['903', '7989', '6627', 'U', 'w', 'H', '5997', '1847', '4139', '5083', '4473', 'a']