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

Example Input: Sentence: 'a woman smiling for the camera while on a boat'. How many words contain the letter 'e' in the sentence.
Example Output: 3

Example Input: Sentence: 'a tabby cat under a white comforter and on top of a cream colored pillow'. How many words contain the letter 'l' in the sentence.
Example Output: 2

Example Input: Sentence: 'a person holding a smart phone in their right hand'. How many words contain the letter 'x' in the sentence.
Example Output:
0