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

Example Input: Sentence: 'a large clock tower under a grey cloudy sky'. How many words contain the letter 'l' in the sentence.
Example Output: 3

Example Input: Sentence: 'a tv showing a broadcast from the weather channel'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a rusty old red fire hydrant in the weeds'. How many words contain the letter 'o' in the sentence.
Example Output:
1