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

Example Input: Sentence: 'a woman is standing at a fruit stand'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a stop sign with some words beneath it'. How many words contain the letter 't' in the sentence.
Example Output: 4

Example Input: Sentence: 'a man on a snowboard standing at the bottom of the mountain'. How many words contain the letter 'd' in the sentence.
Example Output:
2