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

Input: Consider Input: Sentence: 'a zebra standing still in the grass near a tree'. How many words contain the letter 'w' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'an old motorcycle with the seat missing parked in a garage with other parts and motorcycles'. How many words contain the letter 'r' in the sentence.

Output: 6


Input: Consider Input: Sentence: 'a young lady putting on her snow board near a young man doing the same'. How many words contain the letter 'k' in the sentence.


Output: 0