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

Example Input: Sentence: 'an image of a man with a tennis racket in hand'. How many words contain the letter 'u' in the sentence.
Example Output: 0

Example Input: Sentence: 'zebra walking through some desolate savanna alone during the day'. How many words contain the letter 'e' in the sentence.
Example Output: 5

Example Input: Sentence: 'a woman sitting on the beach under an umbrella'. How many words contain the letter 't' in the sentence.
Example Output:
2