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

Input: Consider Input: Sentence: 'street signs are affixed to a utility pole'. How many words contain the letter 'u' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man wearing a striped tie and a hat'. How many words contain the letter 'h' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man paddle boarding in the middle of the ocean'. How many words contain the letter 'i' in the sentence.


Output: 3