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

Input: Consider Input: Sentence: 'a group of men sitting by tables working on laptops'. How many words contain the letter 'l' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'two people riding on the back of a large elephant'. How many words contain the letter 't' in the sentence.

Output: 3

Input: Consider Input: Sentence: 'main street sign under a stop light hanging in the air'. How many words contain the letter 'h' in the sentence.
Output: 3