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 grown elephant with two baby elephants standing in tall grasses'. How many words contain the letter 'w' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a construction worker is holding a stop sign'. How many words contain the letter 's' in the sentence.


Output: 4