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

Example Input: Sentence: 'a computer desk holding a laptop computer and white ceramic lamp'. How many words contain the letter 'r' in the sentence.
Example Output: 3

Example Input: Sentence: 'some kids are all taking a photograph together'. How many words contain the letter 'e' in the sentence.
Example Output: 3

Example Input: Sentence: 'a white bath and robe in a room'. How many words contain the letter 'f' in the sentence.
Example Output:
0