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

Example Input: Sentence: 'a kitchen with hard wood floors and a stove top oven'. How many words contain the letter 'g' in the sentence.
Example Output: 0

Example Input: Sentence: 'person standing in the grass striking a baseball with a bat'. How many words contain the letter 's' in the sentence.
Example Output: 5

Example Input: Sentence: 'a green blue and yellow boat sitting in a harbor'. How many words contain the letter 'o' in the sentence.
Example Output:
3