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

Example Input: Sentence: 'the bathroom has a shower toilet toilet paper and a sink with leaves in it'. How many words contain the letter 'v' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man herding brown colored animals with a dog'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'a man pouring wine into a glass on a counter'. How many words contain the letter 'a' in the sentence.
Example Output:
5