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

Example Input: Sentence: 'the corner of a bathroom with washrags and cleaning supplies'. How many words contain the letter 'q' in the sentence.
Example Output: 0

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 display case filled with various donuts and other sweets'. How many words contain the letter 'b' in the sentence.
Example Output:
0