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

Input: Consider Input: Sentence: 'a woman with a green umbrella crosses the wet street'. How many words contain the letter 'q' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a man with a skateboard up in air at a skateboard park'. How many words contain the letter 's' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'a stop sign at the end of a narrow alleyway'. How many words contain the letter 'i' in the sentence.
Output: 1