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

Example Input: Sentence: 'multiple birds on the ground in a parking lot'. How many words contain the letter 'm' in the sentence.
Example Output: 1

Example Input: Sentence: 'an over head view of people walking in a cramped area'. How many words contain the letter 'q' in the sentence.
Example Output: 0

Example Input: Sentence: 'a dog riding a surf board on a wave'. How many words contain the letter 'f' in the sentence.
Example Output:
1