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

Input: Consider Input: Sentence: 'a young man standing in front of a laptop computer'. How many words contain the letter 'y' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a young girl plays tennis in a court with grass in the cracks'. How many words contain the letter 'w' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'an orange van with vehicles behind are sitting on the road'. How many words contain the letter 'd' in the sentence.


Output: 2