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

Example Input: Sentence: 'many different species of sheep in display at a museum'. How many words contain the letter 'p' in the sentence.
Example Output: 3

Example Input: Sentence: 'there is a person awaiting to cross this street'. How many words contain the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'a large dog curls up on the pillow on a bunk bed'. How many words contain the letter 't' in the sentence.
Example Output:
1