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

Example Input: Sentence: 'a close up of a street sign that is not in english'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.
Example Output: 1

Example Input: Sentence: 'a gir waits on a park bench out side'. How many words contain the letter 'v' in the sentence.
Example Output:
0