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

Example Input: Sentence: 'a train on the side of a road on the edge of the water'. How many words contain the letter 'u' in the sentence.
Example Output: 0

Example Input: Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a woman wearing orange clothing standing outside a brick shack'. How many words contain the letter 'f' in the sentence.
Example Output:
0