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 tucks his knees to complete a jump on his skate board'. How many words contain the letter 'f' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'little girl with her bunny beside her sitting on a bench'. How many words contain the letter 'w' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a person with a child looking at two horses'. How many words contain the letter 'l' in the sentence.


Output: 2