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

Example Input: Sentence: 'a woman standing on a beach near the water'. How many words contain the letter 'n' in the sentence.
Example Output: 4

Example Input: Sentence: 'a close up of two black cows grazing the grass'. How many words contain the letter 'u' in the sentence.
Example Output: 1

Example Input: Sentence: 'a group os people are hanging out on a snowy field'. How many words contain the letter 'p' in the sentence.
Example Output:
2