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

Input: Consider Input: Sentence: 'a boy is doing a trick with his skateboard'. How many words contain the letter 'y' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'an lshaped desk covered in various computers and accessories'. How many words contain the letter 'e' in the sentence.

Output: 5

Input: Consider Input: Sentence: 'a man wearing glasses is typing on a computer'. How many words contain the letter 'c' in the sentence.
Output: 1