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

Input: Consider Input: Sentence: 'an image of a man with a tennis racket in hand'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'the man in a leather jacket sits near many wine glasses'. How many words contain the letter 'b' in the sentence.


Output: 0