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 across a beach carrying a surfboard'. How many words contain the letter 'i' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a tabby cat under a white comforter and on top of a cream colored pillow'. How many words contain the letter 'l' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'three children who are holding baseball equipment'. How many words contain the letter 'g' in the sentence.


Output: 1