In this task, you need to count the number of words in a sentence that contain the given letter

Input: Consider Input: Sentence: 'a large clock tower under a grey cloudy sky'. How many words contain the letter 'l' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a airplane that has a propeller on the wing'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'three women and a baby who are sitting at a table together'. How many words contain the letter 'j' in the sentence.


Output: 0