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

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 large brown dog with a white deflated ball in its mouth'. How many words contain the letter 'm' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'a bearded man enjoying the dirst bite of a hot dog'. How many words contain the letter 's' in the sentence.
Output: 1