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

Example Input: Sentence: 'an orange cat laying on top of a wooden table'. How many words contain the letter 'l' in the sentence.
Example Output: 2

Example Input: Sentence: 'a ram standing still in an empty pasture'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'a bottle of liquor cups and a tablet on a table'. How many words contain the letter 'n' in the sentence.
Example Output:
2