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

Input: Consider Input: Sentence: 'a man walking in front of a train station'. How many words contain the letter 'o' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'ladies playing a video game and having fun'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a vegetable sandwich with cucumber pickle and tomato'. How many words contain the letter 'y' in the sentence.


Output: 0