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

Example Input: Sentence: 'three zebras are shown in a black and white photo'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a man sits on a bench with a dog in lap reading'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'a airplane sitting on the tarmac at an airport'. How many words contain the letter 'u' in the sentence.
Example Output:
0