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

Input: Consider Input: Sentence: 'a surfer in a black wet suit riding a wave in the ocean'. How many words contain the letter 'x' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'an elephant near a man sitting down'. How many words contain the letter 'y' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a man at a desk on a laptop computer'. How many words contain the letter 'w' in the sentence.
Output: 0