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

Input: Consider Input: Sentence: 'a grown elephant with two baby elephants standing in tall grasses'. How many words contain the letter 'w' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a brown teddy bear sitting on top of a tree branch'. How many words contain the letter 'h' in the sentence.


Output: 1