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

Example Input: Sentence: 'a man showing a piece of hardware he took apart'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a basket that is full of fruits and vegetables'. How many words contain the letter 'v' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man looks at fruit at an open air market'. How many words contain the letter 'i' in the sentence.
Example Output:
2